What should I do?!?!?

Okay, so I was going out with this kid, let's call him Justin. He broke up with me and about a week later asked me out again. I said yes, because I still had feelings for him. He broke up with me about a week later and about 2 days later started going out with this girl Jess. Well, Jess broke up with him, because she liked someone else, and now Justin is trying ti figure out if I still like him. I do still like him, but everyone keeps telling me that I shouldn't go out with him. Soo, what should I do?!?!