Well I'm a christian and I believe in virginity until marriage or that was what i thougth until I met my first an current boyfriend. He knew my beliefs  from the beginning of our relationship and was ok with but sudenly he changed his thought and tried to changed mine. We had a big fight and ended breaking up but we got back together because I decides that sometime in our relationship I was going to do it with him. In the moment i felt sure about that decision but I discovered that is not true. I don't feel good with myself and my beliefs and tried really hard to think like he does an let my faith behind but I just can't do it and won't do it. But I don't know if i should tel him all of this, i think that if I do tell him we will end breaking uo again and I dont want to. What should I do?