Help? ( boy troubles)

So I met this guy at a party last weekend. We totally hit it off and exchanged numbers. He's nice and down to earth, and I can tell he's into me. But, I have a boyfriend of 4 years. The guy I met at the party knows that I have a boyfriend, and we didn't do anything. Merely just talked. But I find myself constantly thinking of this guy. I don't know what to do. My boyfriend and I don't have any problems, although he recently moved out of state so we just became a LDR. I'm just confused at the moment. 🆘