I've never experienced the negative moodlets in this game

I think the only time in my game is when my sim and her husband split up. She was gutted for days and would sit at the table eating alone with her lip trembling, on the verge of tears. She would have fits of crying every so often and walked around looking totally miserable. I felt SO sorry for her!

Her best friend would call around every day to try and cheer her up, but it went on like that for quite a while. It was awesome :D