I can't wait to see Mach's response to this. My own experience, yes H got angrier when I seemed to be happier. I didn't really do LRT, at least not intentionally, I bent over backwards to just keep the peace, do whatever he asked, and stay out of his way. Until recently. So LRT seems to for the most part be having a different effect. Going silent at first brought out more cruelty than I thought was possible. My cell phone was searched, "my" room was searched, the trash was searched, years old school term papers were read to be used against me. When I wouldn't fight back, boy that was a nightmare. Be careful. After a while, H changed his tactic. Suddenly it was ok to talk, to do things, to be nice until I seemed comfortable simply getting along, and then the barrage of crap started again. I was wrong for being nice. I swear they are just nuts. That for the most part seems to have faded, or at least he doesn't take it out on me anymore, with one exception last month. But it didn't work. He has always had a bit of a temper so it is something that will probably be a part of any R he has, hopefully just not so bad as it has been.
Good for you for not telling him to go if his mom told him not to. They want someone to make their choices. They try to force it, at least our H seem to have that in commom. If he chooses to follow her instructions, eventually he will have to put the blame on her and not you. I would stop talking with her as much as possible if I were you. Then NOTHING can come back to you as your idea. Eventually, they should look at what the real issues are. I don't know if they will or not. I told H I will protect my S from MIL, she too is nuts, but that what he did was up to him. So he seems to be doing as little as possible to not be seen as the bad guy, but not really reaching out to her either. (That is a strained relationship at best, her doing not mine or H's.) She has tried to repair it but H has been smart enough to see that she has not changed herself and it will not be a different type of relationship any time soon.
If you can, I can't link, find Happy Again's threads in the the MLC archives. He originally posted as Finally Free. I think it was around 06. Boy if you want to see what anger looks like from inside the MLCer, that will show it to you. He was angry at everything, including and especially at his W for making the changes that she did.
"Acceptance doesn't mean resignation. It means understanding that something is what it is and there's got to be a way through it."--Michael J. Fox