Do...I do it?

Like I said before...there's this guy...and we met each other a long time ago and never much else than a polite conversation every so often. So, until a series of events happened where I told him I was into guys, he's been every so often messaging me to do stuff with him. I guess like once a week now that I think about it. And when I say stuff I mean he wants my ass from the way he's been talking to me. It just bothers me. I want something more than that but when he propositions me I can't just tell him off. I'll think back on it and want it, no matter what morals or whatever rationalizations I come up with. I'm pretty sure I'll regret it but right now I just want to make out with him again. Good God. It's just hard. Usually, I'll be very turned off by his advances and then later I'll fantasize about having his dick in my mouth. Yeeeeeep, I'm classy. I guess I have to make things clear with him pretty soon because I don't want to lead him on. It's just that...I'm afraid I might go back on my words and I'll have that moment where I really just want to run back to him and ask to get my rocks off with him. A part of me wants to keep true to what I really want and another part of me knows that but still wants a booty call open. Geez.