Love Triangle guide

One Sim, two love interests, and everyone knows it.

Your Sim has feelings for two Sims at once. Instead of hiding it, they say it out loud. From then on all three Sims have their own interactions. The Sim in the middle can sneak around, think it over, and talk to a friend. The two love interests can demand answers, give an ultimatum, or walk away. In the end someone makes a choice, or the triangle ends another way.

Version 1.3.1 is free.

Names used on this page:

• The center is the Sim with feelings for two Sims.
• The love interests are the two Sims the center has feelings for.

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Getting started

What you need

• The Sims 4 base game. No expansion, game or stuff pack is needed.
• XML Injector. Required. Without it there is no Love Triangle menu at all.
• Lumpinou’s Mood Pack. Required. Many of the moodlets use its moods.

The Maplebell Pie Menu is not needed for this mod.

Installing

1. Close the game.
2. Delete the old file, maplebell_LoveTriangle_v1.3.package, from your Mods folder, including any copies in subfolders.
3. If you still have an older file such as maplebell_LoveTriangle_July2026_repaired.package or maplebell_LoveTriangle_(August2026).package, delete it too.
4. Unzip the new file, maplebell_LoveTriangle_v1.3.1.package, into your Mods folder.
5. Keep only one Love Triangle file. An old copy left behind can quietly replace parts of the new one.

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How to use it in game

1. Starting the triangle: Reveal Divided Heart

1. Your Sim needs at least 30 romance with each of two Sims.
2. Control the center. Click one of the two love interests.
3. Go to Romance > Love Triangle > Reveal Divided Heart.
4. Your Sim confesses. A list opens: pick the second love interest.

The triangle now exists, and the Love Triangle interactions open up for all three Sims.

Who can start one:

• Teens and older only. Children are never part of a triangle.
• Romance follows the game’s own rule: teen with teen, or adult with adult. A teen and an adult cannot start a triangle together.
• Relatives cannot be picked or listed.

Jealousy still works as normal. The love interests know about each other, but being romantic around one of them can still make the other jealous.

Reveal Divided Heart: confess, then pick the second love interest.

2. What the center can do

Click your own Sim (the center), then Love Triangle:

• Sneak Around: go out in secret, “preferably with one of the love interests”. The list shows Sims your Sim has romance 20 or more with. Relatives are not listed, and a teen and an adult are never listed for each other. Your Sim gets one of six moodlets. For the next 24 Sim hours the love interests can confront them.
• Explore Feelings: your Sim thinks about how they feel. One of 13 random thoughts.
• Reflect on Feelings: your Sim gets a hint about how they feel about each of the two love interests. The hint follows the relationship bars, so a stronger relationship shows up more often. A teen can sometimes also get the game’s “Swooning Over Crush” moodlet (about one time in three).

The center’s own Love Triangle menu.

With a love interest:

• Explore Feelings, Admit Fear of Loss, Trial Separation (no romance for 24 Sim hours), Propose Open Relationship.

Admit Fear of Loss, Explore Feelings and Trial Separation with a love interest.

With a close friend, under Relationship > Other Sims > Love Triangle:

• Seek Comfort about Torn Heart and Seek Neutral Advice about Torn Heart.
• The center needs 80 or more friendship with the friend and romance 0 or lower with them.

Talking it over with a close friend.

3. What the love interests can do

Control a love interest and click the center, then go to Romance > Love Triangle.

• Demand Explanation: only within 24 Sim hours after the center used Sneak Around, and only for the love interest the center did not sneak with. The center picks one of five answers. It can really upset the love interest: they get “Emotional Turmoil” or “Betrayed Trust”.
• Ultimatum: three answers, words only. Afterwards you can end the triangle, but you do not have to.
• Open Relationship Proposal: the love interest proposes an open relationship.
• Demand Transparency, Express Resentment, Accuse of Playing Games.
• Propose a Fresh Start: ends the whole triangle.
• End Relationship: see “The ending” below.

What a love interest sees in the Love Triangle menu.

Demand Explanation and Ultimatum, with the answers the center can give.

Some romance interactions inside a triangle, including both open relationship proposals, are for young adults and older.

4. The ending

There are only a few ways out. Every one of them clears the whole triangle, for all three Sims.

The Final Choice (“I Choose you Over”)

1. Control the center.
2. Click the love interest your Sim chooses.
3. Pick I Choose you Over.
4. The list shows the other love interest. Pick them.

The chosen Sim gets “Chosen One” and a big romance boost. The center gets “Decisive Moment”. The other love interest gets “Heartache”, and loses 40 friendship and 80 romance with the center.

I Choose you Over, and the moodlets each Sim gets.

End Relationship (a love interest walks away)

1. Control a love interest and click the center.
2. Pick End Relationship, then pick your rival from the list.
3. Romance drops hard. The love interest feels “Liberation”, the center “Heartbreak”.

Open relationship If the center or a love interest proposes it and the answer is yes, the triangle ends.

Proposing an open relationship, and the moodlets for yes or no.

Propose a Fresh Start Also ends the triangle.

After an ending, the triangle’s options close.

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What’s new in version 1.3.1 (12 November 2026)

Changes since the 31 October update.

Who can be in a triangle

• Children can no longer be part of a triangle. Teens pair with teens, young adults and older with each other.
• Relatives can no longer be revealed as love interests, and they no longer show in the Sneak Around list.
• Sneak Around now only lists Sims your Sim has 20 or more romance with.

Sneaking around

• The Sim you sneaked with can no longer Demand Explanation for it. The other love interest still can.
• Juggling Act and Guilty Secrets only come up when the partner you sneak with is one of the love interests.

Talks and reactions

• The second love interest now also gets a moodlet at the reveal (Conflicted Heart, Torn Sympathy or Doubtful Heart).
• Apologize and Explain no longer give the love interest an upset moodlet.
• The Ultimatum’s “Okay, Fine” and “More Time?” reply lines swapped places, so each fits its answer.
• A No to an open relationship plays a neutral talk animation.
• Propose a Fresh Start and Trial Separation now have a speech line saying what is happening.
• Reflect on Feelings’ hints only count the two love interests.
• Only teens get Swooning Over Crush from Reflect on Feelings.
• Seek Comfort and Seek Neutral Advice never give a crush.
• Accuse of Playing Games now costs a small relationship loss with the clicked Sim.

Endings

• End Relationship and Final Choice now end a dating tie as Broken Up and an engagement as Broken Engagement. Married Sims stay married.
• A teen pair that was Promised is no longer Promised after either ending.
• The friendship and romance losses of the endings only hit the two Sims involved, not everyone in the conversation.
• End Relationship only lists your Sim’s own rival, never a Sim from another triangle.
• End Relationship now also works when the two love interests are related to each other or don’t get along.

Good to know

• After a Yes to an open relationship, only the two Sims in the conversation get a moodlet. The other love interest gets none. The game can’t reach that Sim from the Open Relationship interactions.

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Known limits

• Sneak Around disappears with no explanation when the center has romance 20 or more with nobody.
• If a love interest is in two triangles at once, they may see two names in a list.
• In a very big save, End Relationship may take a moment to open.
• If an old save has a child as the center of a triangle from an earlier version, that child can still open Sneak Around.
• The game has a rare bug of its own: on a save that still holds a relationship with a Sim who no longer exists, an ending can show an error. This is in the game, not in the mod.
• Other game languages show English text. All 18 language slots are filled, so nothing shows blank.

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If something looks wrong

I cannot see Reveal Divided Heart. Check: XML Injector and the Mood Pack are installed; your Sim has at least 30 romance with two Sims; both are teens with teens, or adults with adults; neither is a relative; you are under Romance > Love Triangle on one of them.

There is no Love Triangle menu at all. Almost always a missing or old XML Injector. Also check that only one copy of the mod is installed.

Sneak Around is gone. The center has romance 20 or more with nobody right now.

Demand Explanation is missing. It only appears within 24 Sim hours after the center used Sneak Around. The Sim the center sneaked with does not get it; the other love interest does.

The friend options are missing. They are under Relationship > Other Sims > Love Triangle. The center needs friendship 80 or more and romance 0 or lower with that friend.

The open relationship option is missing. It is for young adults and older.

Who do I click for the Final Choice? Click the love interest your Sim chooses. The list then shows the other one. Pick them.

Will a Sim start these on their own? No. Everything in this mod is player-directed.

Do I need Parenthood or High School Years? No. Love Triangle works in the base game.

I updated and my triangle from before is still there. That is expected: the triangle is saved with the relationships. It ends when you use one of the endings.

If something goes wrong, tell me what happened, what you expected, and which Sims were involved.