Most Helpful Guy
It doesn't matter what his purpose is. What is your purpose? You need to be honest with yourself about what you want from him. . . and it's obvious that you want to reconcile.
Why do you want that? He broke up with you. There were significant problems and they will still exist if you reconcile. He has given you mixed signals since the break up and both of you have acted rather juvenile since you stopped dating. Why would round 2 be any different than round 1
Every relationship that you are in gives you opportunities to learn and mature and they help to prepare you for the next relationship. You need to learn what you can from the relationship you had with this guy, makes whatever changes you think you should make in your behavior, and then move on. Remaining fixated on this guy will be like jumping into a stagnant, algae infested pool to go swimming.
Most Helpful Girl
Mind I ask, what is the reason to the break
I think he's trying to move on, but couldn't do that because he still have lingering feelings for you. My best guess is he couldn't see himself being a committed relationship with you?