Does he want me back or is he just messing with me?

Listen your doing the right thing. He's just jealous you moved on before he did, because trust me if he had found someone he wouldn't be all boo hoo ing and acting hurt. Just keep going out and having fun and eventually you will be okay. Just take it slow and don't build up any expectations and you will end up finding something better. Dont fall back into him, because you will be ran circles around and the same thing will end up happening later. Good luck