Wtf, is he trying to make me jealous or should I give up on him?

[=)]

This guy and I have been in the "talking" stage for almost 2 months now, though we pretty much act like a couple. We're both in college right now. We go out a lot together - sometimes he'll go with me rather than with his friends. I've met his friends too, and we all get along. He always offers to help me in some way. Usually, he wouldn't attend something unless I was going. We've talked about relationships before, and he said his longest relationship was 10 months - they broke up this summer (we're both in college now). Seems genuine, right?
The thing is, we've never talked about "us" really, like what we "are". We've never mentioned how we feel for each other, though it's obvious. Sometimes when I'm out with him, I notice he starts talking to other girls, which I don't care about really. But ever since we've been on break, he's mentioned twice on Twitter how he's sad about the lack of "girls" in his area (he used another word, but I'd rather not say it). He still tries to talk to me everyday - two days ago we video chatted, last night he called me. And he texted me earlier, but I was upset about that status. I figured he's trying to make me jealous, which is working lol, but now I'm thinking he probably wants an open relationship, which I DEFINITELY don't want.
Advice?

[Taylor]

Don't get with him if he makes you uncomfortable - especially when you're not even officially together! If he ever asks you out, make sure he knows this and what you want in a relationship before you say yes -- if you chose to, that is.

[Alex]

all i can say is that he does want u but if he want a open relationship and u dont want one dont do it

hope this helps