FTS,
Welcome back my friend, glad to see you are doing so well!! Congrats on graduating from nursing school, I am so proud of you!! What you have accomplished over the last few years and over your "life" is amazing. You are such a fighter and you deserve that diploma!!
I agree with all the other posters. Follow through with the divorce. He does not deserve you, as you are so much better then him. How many horrific things has he done to you (didn't you have surgery and he was so messed up he couldn't help you, and you had your mom help, right ugh?) This is your time in your life. You move forward and take care of you and the kiddos. He has "found" AA and is now the responsible adult that you always needed him to be, really??
Follow through with your plans and mind your side of the street. As you know there is always more to come when you are referring to an addict. The divorce won't happen tomorrow, so keep moving forward and don't let your guard down.
Stick around FTS, we missed your smiling face.