All he wants is sex, should i go for it?

[Lauren]

So a guy i've worked with for about a year. i've had just a little crush on him. He and i have always constantly flirted and etc. but he went out with another one of my coworkers and broke it off a while ago. i just put up another posting asking if he liked me, and explaining the whole situation. I am not a virgin but i hung out with him last night and all he want was to sit in the car at a very dark park. we talked then he asked very personally questions, then he says he wants to hook up. right then and there it took him like 30 mins just to get me to makeout with him. and he was so convincing i almost actually slept with him. The point is i'm not so pretty (a little overweight) and he is hot (like muscle man, and every thing about him). He kept saying this doesn't have to be a one time thing, we can do it on wednesdays and sunday nights. After we went our ways i have never felt to crappy about myself, he told me he find me attractive and he really like me. I know he was just saying all that stuff to get with me. But it makes me feel bad that he'd rather have sex with me in the back of his car than to get to know me and actually hang out with me. the point is i do llike him should i just have sex with him? or should i just say fuck off?