So so new to this :(

[peacetoday]

I would not pay any attention to "sorry" let his issues be his-
he may be feeling confused and even remorseful
they are manipulative and as you see by his moods, they change rapidly
Im sure he will want you in his pocket while he explores the new R--just in case

You did great--for the kids
you bought time and please stick with it
He may forget everything you said already and be asking for kids to meet OW when she arrives-
I would hold a firm limit on this one and put all your energy into your healing, and becoming used to being both dad and mom now-His MLC will takes a long time and your kids will need a strong parent for them to go through teen life with
He will not be able to adequately be there for them from here on it is you-