It does sound like your H is coming around & realizing what he has done. I don't blame you for being concerned about the OW but at least he is spending more time with you & S. I think you are handling things very well & I admire you.
I read the first part of this new post & I snooped too. But if I had not I would not have found out about OW. I think my H knows that I have done this b/c he made the comment that have done some underhanded things. Oh! But going behind your back & having an A is not worse that being underhanded???
Hang in there it does sound like things are improving. From what I understand in MLC they start to come back & then back away then come back again. So just stay strong & take care of you!