S.o.s What should I Do?

I started having sex with my ex from like freshman year....Me and my last boyfriend of like eight months broke up because I'm going to school in Florida and he staying down in Jersey... it was a mutual break up because he hadn't been hanging out with me a really talking to me for two months so we had a mutual break up and we still are on good terms…. However my ex from My freshman year hit me up and we've been hanging out a lot and having fun. He says we have a "summer fling" and we are just "best friends with benefits" but the good thing is everything is on the DL and neither of us are telling anyone ... He also said that he would date me if I wasn't going so far away. I think I'm starting to get feelings again because he was the first guy I ever fell in love with and he's acting like he's getting feelings too. I don't know what to do. What should I do?