He told me all he wants is sex?

I am in love with this guy and it really feels like he loves me too. However, he told me on numerous occasions, he would love to say he loves me and mean it, but he loves sex :/ He tried to persuade me to have sex with him on numerous occasions and made it all seem like something to be undertaken lightly. He also said and this is a direct quote : 'if you ever want sex just call me and I'll come...get it?' (*insert silence*) It's like he turns into a total ****** when he's horny. However, when I hug him just hug him it's like I could stay there forever, and our kisses are incredible and he told me he could 'easily fall in love with me'. However, he is also 20 years older than me and he thinks I should stick to my own age group and not bother with him. I am really in love with him but I can't stand how much he has insulted and hurt me. I guess well, guys are pretty straightforward... I guess all he really does want is sex- but he makes me feel like there is so much more to it than that sometimes (ie: when he's not thinking about his dick) However, he does insult me soooo much and it is so draining! I let him touch my breast recently and I didn't like it and he tore his hand away and announced I had 'no self respect' after he spent about 2 days convincing me about how sex is such a great way to get to know each other! Obviously I don't think so!!! What should I do??? I feel really weak and all my energy is sapped and I am walking around in a haze... because I really loved him so much for so long and I was so sure he felt the same... I never thought he would turn out to be like that...