Taking pictures down..

I gave my boyfriend a framed picture of us about six months back and gave him another photo for Valentine's Day and he had both in his room but recently the framed picture was flat on its face on his dresser and the other photo was taken off the wall and he said his drunk friend knocked down everything on the walls, but now neither of the pictures are even in his room, or are locked up in a drawer. I don't know if it's just cause he's a guy and doesn't want his friends to see, but I just kind of have my feelings hurt by that..should I ask him about it or just let it be?