I agree with Specialmom. When you are in a relationship with someone the art of lovemaking is a 2 way street. Exploring with each other and finding out what turns each other on is important. The way he is going about this reaching orgasm will be hard to achieve for you as that is way too much pressure for you. To have a real successful sex life you 2 need to be mentally connected. He sounds like he is full of insecurities so please dont let those become your problem. You deserve better.
If your boyfriend is getting mad over your wetness or not being wet enough, this is not a keeper in a guy. Seriously. He should not be that insecure that he is monitoring a bodily function like that. Buy some lube anyway and then he won't know what is you or the lube. But if he is saying you should be a certain way because of other women he has been with, etc.---- that's gross.
For you in general, learning how your body is best pleasured is important. I just listened to a program on satellite radio while driving today and it was a sex therapist. She said that only 15 percent of women have vaginal orgasms and the rest have clitoral orgasms. (whew, I can't believe I'm having this kind of indepth conversation, lol). They suggested that if you are having issues, to try a vibrator. Learn to use that to climax and then share that with your partner.
Problem is, your partner isn't understanding and is making you feel inadequate for how your body is responding.
Again, he doesn't sound like a keeper to me. This would be the first of many things he'll be insensitive about in the future. good luck