Old friend is back

Okay so an old friend of mine moved back here to Waldorf. But the thing is we really didnt end things on a good level and hes like coming around and hanging over my house and its weird I dont know what to talk about with him. I mean of course I missed him but I dont know how to like start talking like we use to again. And I dont think rain would like it if I talked to him at all but hes cool as shit and I just miss being his friend. Idk what to do:( I need help please?????????