Confused..is he into me or using me?

Well I started talking to this guy about a week ago. Usually through text and we've hung out twice. Each time we've gotten together we'd mess around. (I'm about to be 19 and he is 20. I'm also a virgin) Normally it takes me awhile before I actually mess around and this is the first time I've went this fast with anybody. We haven't had sex, he tried and when I didn't let him he said it was fine and continued kissing me. Last night though I gave him head twice. He hasn't been a douche bag or rude but I'm wondering/worried if he kind of lost respect for me because I don't think he will be asking me to be his girlfriend. I'm not attached or up his *** it's pretty casual between us but I do like him. I'm just curious if he's only talking to me in hopes of sleeping with me, which I'm NOT allowing unless I'm fully ready and that's definitely not now.