Maybe I missed something, but whether or not he is in an A really doesn't matter unless he tells you he wants to recommit to working on a marriage and asks how he can back that up with actions.
I don't think that has happened, so it doesn't matter.
Even if an A was a deal breaker for you it doesn't matter, because your next 12-24 months should be the same whether you move on or are in limbo, and the truth will be revealed well before then.
So just sit back and enjoy your life.
Me:38 XW:38 T:11 years M:8 years Kids: S14, D11, D7 BD/Move out day: 6/17/14, D final Dec 15