Realm of Magic - So " infatuate " can't break up couples?

Sims 4 sims won't automatically slap/argue/divorce like they did in Sims 2. They just get a jealous moodlet, which could be easily overpowered by nice decorations and high needs. If you want them to break up you either have to flirt with the married sim yourself and have your sim ask the other to divorce their spouse, or play as the couple after they've gotten the upset moodlet and manually get them into an argument and divorce them yourself.