Here's how I found out about his weird "habit" if that's even what it is. He was showing me some pictures on his phone and I came across some old pictures he took prior to us being together (though we were already getting to know each other) these pictures were of girls' butts at a night club. These girls clearly had no idea the pictures were taken because they weren't posing for the camera. I found that kind of creepy and confronted him about it but he said that was a one time thing he was drunk and thought it was fun to do it. I got over it but recently I found a lot of pictures of me in his phone. Pictures he takes of me when I'm changing without telling me he's doing so. It doesn't bother me that he has them. But I think is creepy that he doesn't tell me about them. Does he have a problem? Is that normal? Am I exaggerating?