I could have written what you did!!!! My H did the same things. Our R was really strained. This is when my H moved home, out again, home again, etc. Just be prepared for that to happen. It seems that some of the MLCer's do that. It is still the process. It sounds like your H is still in contact with the ow and any reconciliation won't happen until he is done with the ow for good. At least that is what happened in my sitch. The contact will be hot and heavy for a while and it will dwindle down to nothing.
Just keep a cool head on your shoulders. You will be tested by your H big time during this part. Grab you some patience and alot of understanding.
It really sounds like he is making the turn for home for good....it takes time.