I truly do not want to sound offensive, but this guy doesn't sound like a very good person. He knows you have limitations, says that he'll respect them and you end up going beyond them again. It sounds like he's in it for his own gratification. It sounds like you are confused because you have feelings for him. The reason I say he doesn't sound like a good guy is because he knows all of this, knows you have feelings, limits and says all the right things to make you feel comfortable and then does what he wants anyway. All this without the excuse of being so in love with you he can't control himself. He's got is head on straight, chemistry isn't clouding his judgement and still his interests are his own.