I just need some advice..?

U said that u are not a lesbian but this ur girlfriend got u so hypnotise. Its so interesting, I mean ar u not attracted to boys? If ur answer is NO then u ar about to enter into the lesbian family. To get rid of it, make i little shift from ur base and go to another town where ur relation stays and lived there. That will help u think less of her and probably avoid the risk of having sex with her one day. Believe me u will feel better.