Why am I not surprised that he's wanting to reunite? His relationship with Twinkle Tw@t (TT) has gone south and now he wants back into your lives because he sees that all three of you are doing well and are very happy.
He would need to be sober and in therapy for at least a year before I would even consider "dating" him. Keep in mind...it's a brand new relationship and you are very wise not to allow him back until the hard/necessary work is done. He needs to prove to you that he is trustworthy and is willing to stay sober and not have any contact w/ the "TT".
He also needs to learn what boundaries are and heed them when you tell him to back off, etc.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.
