What to do? please help, dudes and ladies?

I have an autographed copy of a WWE Divas autobiography stacked somewhere on my shelf in my apartment as part of my wrestling collections. One night my girlfriend just happened to see this book and started to feel so jealous and insecure. I had told her many times with all my heart that I love her very much and she is the one for me and that she is the one I come home to. She had told me that just because she had never seen any book like that before. She had told me that just because the Divas had talked about their sex lives and underwear before, that constitutes sexuality. And that makes her insecure. She says she loves me very much but she doesn't want to see that book anymore. Her choice words to me was "It's either me or the book". I love her very much but I don't wanna give up any of my personal wrestling collections. I have told that her time and time again. She doesnt seem to respect my personal collection. Nothing bad, mind you. They're just all wrestling. I have asked her so many times, "Don't you think its unfair that I never ask you to get rid of anything because its your personal property, but yet when you come to my place you always ask me to get rid of my personal collections?" (I never get rid of my personal stuff, btw). I am on borrowed time with my "gf". I don't know how to deal with her. After awhile together with her, I am on my last legs. Help?