I can only say what happened with me. When I finally drew a line (there were a few lines like no more sex or affection, then me moving out unless..., then finally ihs/coparenting only) his reactions were:
1st. Irritation or anger ("Fine!").
2nd. Then moved to making some showy changes (going to IC a few times followed by cancelling appointments and changing nothing in his behavior).
3rd. Doing more chores rather than digging into his Whys.
4th. More anger and victim playing ("Nothing I do is good enough!").
5th. Waiting me out. He was making an occasional IC appt. here and there, doing a few more chores, and accepting the new status quo of less or no affection with a little bit of low level frustration. (Many, many BS confuse this stage with change. This is NOT real change, just placating behaviors.)
Weeks and then months ticked by. It was like a staring contest, a game of chicken. Who was going to give in first--me or him? He wanted what he was doing to be enough so we could go back to normal. I wanted a true and permanent change in our relationship. I did not reinstate affection, sleeping in the same bed, or make promises about the future. I frequently skipped seeing his family and sometimes asked him to stay home when I saw mine. I spent more time with friends and did more activities alone. We hung out in limbo and discomfort, neither of us living as we wanted or feeling this was fair. I told myself to get good and comfortable with being nice and uncomfortable because I was fighting for my life, my dignity, my freaking future. He would occasionally yell, "What do you want from me?" And I would answer, "When I feel in my gut that you have become a different, safe person, I will naturally trust you and want to be close to you. If you don't like that I feel completely unsafe, there is the door. I'll help you pack. You will NEVER force me into a demeaning relationship again."
You would think it was all enough, right? Nope. He lashed out again one night (he was drunk), and I said, "That's it. Done. This is not change. You are a liar, a fake, a great pretender putting on a show." And we started divorce proceedings. And THAT is when he actually started to look at his stupid ass self, when he had finally lost it all. I was truly done but was accidentally (he had no clue and thought we were dating others and moving on) won over by his efforts during the D process. His change was a byproduct of D, not an effort to save the M. He only changed when he was devastated by losing everything. (Not saying this would be true for you, DrgnHeart, or anyone else, just that it was true for me.)
Changing an R takes months or years of cutting off affection or 180 or whatever boundaries you have for whatever reasons you have them. It takes a lot more than mere days. And certainly more than a few hours. If you cannot resist your spouse's charm, wit, sarcasm, insults, threats, fakery, jedi mind tricks, wizardry, sexual seduction, pressure, begging, victimization, suicide threats, and all other mental and emotional warfare, you will not be able to stand tall during the "I refuse to accept the status quo!" period in an M. The success of the boundary lies with the person who is sick and tired of being hurt, not with the person making the changes. Can you keep the fortress that is your determination, DragnHeart? Your H will always, always, always want to go back to how it was. He was happy. It's you that has to get comfortable with being in an uncomfortable M because you were NOT happy before. Buckle that seatbelt. This is gonna take a while. His pressure campaign is only getting started.
[This message edited by OwningItNow at 6:24 AM, September 30th (Wednesday)]