Frustrated and unwanted

I was with my ex gf for 3 years, we broke up towards the start of the year because we were way too different. We had a great sex life. As soon as I was single, I felt like I was born again. I took really good care of myself, I hit the gym and am in really good shape and hadn't looked and felt this good in a long time. Then I met this new girl about 2 months after being single. I felt instant attraction!!! We saw eachother for over a month before we decided to make it official, so now we have been together for 3 months. She is a virgin which I totally respect (we are both 21 by the way). The usual thing we get up to is we masturbate eachother, and I have gone down on her once. Now the problems begin... She wont go down on me, saying shes not ready/feels its disgusting. My last girlfriend did it for me all the time because she wanted nothing more in the world but to please me, she loved me so much, but like i said, we were too different people. My gf doesnt want to have sex before marriage, which yes, I respect, however I am very concerned as for her reasons. She is a strict Christian (I am catholic), and shes mentioned the whole religious reason as an excuse before. But there have been countless times when she brags to her friends/family infront of me about how she is still a virgin, and it is usually during unrelated conversations and it will be said more than once. This frustrates me so much, because I just feel that she is doing this because of bragging rights, as if it is some trophy to her. I feel so unwanted, she tells me she is attracted to me, yet she always makes me feel guilty, sleezy and thinks I only want sex whenever I want to talk about it. I haven't been myself for a while now, it is always on my mind. I'm so frustrated, after being with a girl that truly loved me, and then being with my current gf, who tells me she loves me, yet doesn't want me physically. I have told her how unhappy I am, and she is concerned, yet put it back on me, saying that she thought that being with her should be enough for me, and that I only want to be with her for physical reasons. Which is very untrue, I love her, and if I wanted to be with someone because of sex, I wouldn't be with her because we wont ever have sex for a real long time! I feel like the only thing left to do is not to be physical anymore with her, I want her to feel the way I do; unwanted, unattractive, unappealing and useless as a man (or in her case a woman). Please, any comments would be greatly appreciated, I really someone to help me with this