Recently a couple I have had for a long time, they are elder and have been together a long time as well, have been acting odd.
When I send them to bed, the woman pops up out of bed gets the guys face in a thought bubble and cheers for about 30 minutes with no action to cancel. I have to then send her back to bed and then she sleeps through the night. Also, If I queue a few things up, for example, have her eat, shower, then watch tv .... In between each action she runs to where ever he is in the house with his face in a thought bubble, cheers for a minute or so then runs(and I mean runs, up the stairs too) back to what she was supposed to be doing. Its like she is checking to make sure he is still there or something.
Now their relationship has been pretty well maxed since the start, he is a 1-star celeb, she is a 3-star celeb. All of this has gone on for about a week of game time now, if he isn't in the room with her she has to go see where he is. The only thing recent that has happened, I got sick and tired of all the papparazzi around my house until 3am that I took him outside and started fights with all of them (he is maxed martial arts and athletic), and they haven't come back since.
This couple is one of the older ones I have had so I'm not sure if its her going crazy or something else as in some new(to me) bug that I have never seen. As far as her traits, there is nothing out of the ordinary, genius, green thumb, cook, loves the outdoors and good.
edit: I should mention this is with WA, Ambitions and LN installed.