I don't know what your girlfriend was doing rummaging around in your closet but I don't think I would have gotten rid of a piece of my life like that? I might have told her I was sorry she felt that way about "my" life and would have taken the pictures and moved them to somewhere she wouldn't find them. You shouldn't have to feel badly about anything that is/has been part of your life and is/was important to you! Your girlfriend has the problem, not you. It doesn't make sense that she is uncomfortable about your pictures. There's nothing she can "do" about your being married before and it wasn't like the pictures were out and about in your home! And, it's a girlfriend versus a wife; were you married again, it would make more sense but who does your girlfriend think she is to be able to dictate what personal mementoes you keep of your life?