I really get what you are saying. Like countries defending their borders (no, I'm not talking about immigration), we also have borders that must be defended.
Your h has "invaded" and breached and stomped on your borders/boundaries. And he isn't remorseful at all, at least to your face, which is really all that counts. There may come a time when you realize that realistically, there is no way the M can be repaired b/c at some point, you just detach out of self protection and you find yourself "recovered", no longer afraid and very different than you were before all this. You will have grown. I don't know whether your h is capable of doing the repair work needed to regain your trust and love, and the kids'. Seems that most WASs just cannot do it. Either pride, or shame or both, prevent them from truly taking responsibility for their actions and consequences, especially if it isn't quick. If the R's with the kids don't immediately result in the WAS's eing "welcomed home", and instead the WAS sees the kids' doubts, their scrutiny, their hurt, suspicions or resentments, then many of them bolt or blame the LBSer parent....I also don't care whether it's an MLC or a cheating h, or what label, b/c the damage is the same. And your h has had at least one A before all this.....All I'm saying is, I understand your feelings.
Anyhow, take care of YOU and your beautiful little ones. j-
M: 57 H: 60 M: 35 yrs S30,D28,D19 H off to Alaska 2006 Recon 7/07- 8/08 *2016* X = "ALASKA 2.0" GROUND HOG DAY I File D 10/16 OW DIV 2/26/2018 X marries OW 5/2016