Is it normal to feel jealous when i think about my gf being touched by a guy?

I mean I even ask her it too sometimes. but like I talk about the guys I had sex with. *I'm lesbian now* but like it's hard for her. but like when I talk about it it's relevant. I want to know about this one guy because she said he "raped" her but IDK I really don't believe he did. I just want her to tell me the true story. On the other hand I don't wanna hear her talk about it. She has changed her story a couple times though. aghh. lol idk what to do. help? =]