He seems to have a clear intention of coming back to you.
He used to be indecisive and unable to stop the breakup between you, and he has some regrets about it. But he also believes that this will make him more mature and will not let the same mistakes happen in the future. He was more confident in himself now.
If you show even the slightest sign that you are still there for him, he will declare that he wants to come back to you.
