To double down on what AS said. You really should flip this script and decide you DON'T want him back right now. More than let him go, jettison him. Become overly helpful and supportive in his house search etc. As I said, right now he is broken, and that is not your fault, nor is it your responsibility to fix.
Further, on the "see how things play out later", make sure you have a good picture for what that looks like. In other words, make him earn his way back. If you don't give him conditions for return (IC, MC, etc) then if he does come back easily you are likely setting yourself up for another future BD.
To triple down on what Steve said.
While he is gone, you should work up your list of non-negotiable. When he comes beggin you to take him back, you should be very leary and one of your first conditions BEFORE AGREEING is having him come up with his own list. If it doesn't match yours, tell him "It will take more than that." and have him work on the list some more.
Your sitch is little different in the fact that this is his second marriage. No need to answer these questions, but who initiated his first D, why, did he take any accountability in his role, did he learn anything?
"What is best for my kids is best for me" Amor Fati Link to quotes: https://www.divorcebusting.com/forums/ubbthreads.php?ubb=showflat&Number=2879712
