T, stopping in quickly before I'm away again for a day-ish. The responses you've gotten are gold, and I agree with them.
Re: your question about whether your H will come back like he did the last time since this is his second time: we don't WANT him to come back the same way this time. We want him to come back and never pull this crap again. The question is: how do you improve those odds?
And, YES, I can tell you from experience that a man can return to his family after even a second A. But, just like sandi said, unless you guys change the dynamics of your R, you will end up right back here.
You guys moved too quickly last time, just like my H and I did in 2006. I just wanted him home. We didn't do any of the necessary heavy-lifting in our M. We went right back to our old ways. And then you met me here in 2014.
"DB" doesn't end when a spouse returns. The lessons in it are really more of a lifestyle change in your relationship.
M: 40 H: 44 Married 14 years S11 & D6; D20 & D19 from previous M 2BDs/PAs, 8 years apart Piecing: April 2014