My Boyfriend Has Told Me He Fanatizes About Having Another Girl?

I think maybe he is trying to give you hints as to what he wants you to be like. maybe he wants you to start dressing more preppy and so on. Try acting how he describes your twin and see how he reacts. However, I for one would not change for a guy. If he does not love you for who you are then I dont think he is worth it. What is he going to do down the road when he wants you to act like something else make you keep changing?? This is just my opinion but I think if you change and he likes it and you dont then i would either talk to him or let him go. you need a guy who like you for you.