Which Relationship Cheat Sims 4 Commands Reset Relationships Entirely?

I've wrestled with relationship drama in 'The Sims 4' more times than I care to admit, and the cheat that actually lets you wipe the slate is the modifyrelationship command — used to zero out both friendship and romance tracks. First, enable cheats with testingcheats on (or testingcheats true). Then either use names or grab Sim IDs with sims.get_sim_id_by_name FirstName LastName if you prefer IDs.

Concrete example with names: modifyrelationship John Doe Jane Doe 0 LTR_FRIENDSHIP_MAIN and modifyrelationship John Doe Jane Doe 0 LTR_ROMANCE_MAIN. Do the same in reverse (modifyrelationship Jane Doe John Doe 0 LTR_FRIENDSHIP_MAIN and modifyrelationship Jane Doe John Doe 0 LTR_ROMANCE_MAIN) because relationship values are directional and sometimes hidden bits persist otherwise. If you used IDs, the syntax is the same except with numbers: modifyrelationship 123456789 987654321 0 LTR_FRIENDSHIP_MAIN, etc.

A couple of practical notes from my gut-level testing: resetSim only resets a Sim’s physical state and bugs, not their relationships, so don’t expect that to clear romances or friendships. Also, there’s no single vanilla cheat that nukes every relationship in the entire save at once — you either do pairs manually with modifyrelationship or use a mod to batch-clear. Always back your save up before doing mass edits: I once cleared a long-running family tree by accident and swore for a full coffee break. If you still see odd lingering interactions after zeroing the main tracks, try clearing specific relationship bits with extra modifyrelationship calls or check for active situations that might be re-adding ties.

If you want a less tedious route, using a reputable mod (I’ll mention specifics separately) can mass-reset or selectively remove ties. For casual cleanups, the name/ID-based modifyrelationship with LTR_FRIENDSHIP_MAIN and LTR_ROMANCE_MAIN is the most reliable built-in method I’ve used — just be patient and methodical, and keep a backup save so you can roll back if something goes sideways.