Val,
This is a good step for him. He is at a place where he knows what he wants.

Now, I can tell you from experience that knowing what he wants and actually getting there are two different things. Your H still has a long way to go, but there is hope.

Just stay calm and stead. Be his rock, but don't get sucked in. Take it SLOW with him. He's fragile right now.

Married 9 years
Kids 5 and 6
Bomb 2006
H back and forth for a year
M now back on track