I just updated my game, so my mods were disabled. I made a mother and daughter and as soon as I moved them in the daughter laid into the mother. She got the "I'll cry if I won't to moodlet. Her trait are lovebug flirty and outgoing. It's a bit much, when you have sims that haven't even talked to each other just getting into fights.
The "I cry if I want to" moodlet comes from a permissive family dynamic, something which will make the child permanently angry around the parent. There is a bug-report about that here:
[GRO] Permissive dynamic leads to permanently angry sims | EA Forums - 12307274
The Sims Team
