My boyfriend and I have been together for 2 years now, and I have still never had an orgasm.I know it's not his fault, I've never had an orgasm with any boyfriend. We have tried lots of different positions and lubricants but nothing seems to work and it's becoming the reason we argue. I feel like there's something wrong with me and he feels like he's not good enough, so he tells me about how all of his old girlfriends love having sex with him and how they would scream. That just makes me feel worse, and I'm starting to feel sort of used. It's gotten so that I just lay there, I don't even think about sex anymore and I don't get aroused. How do I fix this? What do I do so that I have an orgasm? How do I learn to enjoy sex the way I should? Is there something wrong with me?