Teens and the Fear of Being Cheated On

Only relevant mod is using MCCC to modify lifespans and age. But because this only has to do with relative age, it would likely still happen if MCCC weren't involved.

Long story short, my sim (Teen) started dating Morgan Fyres, who aged up to Young Adult a week before her. So because romantic interactions are forbidden between Teen and non-Teen sims - including breaking up - my sim wound up getting the Fear of Being Cheated On between Morgan's birthday and her own birthday. I get why they don't show the Romance tab between Teens and non-Teens, but it seems odd that romantic interactions are so verboten that you can't even break up with someone or discuss your fear of being cheated on.