I feel in my heart that LRT wasn't working, maybe because of who WH is and what our particular issues were, i.e. I wasn't loving. Over the Christmas period when I was properly dark for about 3 weeks if anything his resolve to leave hardened. Because he was able to build on his relationship with OW and she was giving him all he needed emotionally and I was off away in the dark not putting up a fight, being in his head, showing him I was different.
I read somewhere on this forum someone said that LRT was convenient for him because when his wife employed it, it meant his life got easier with no hassle from her and he was getting all his needs met by his OW. That has really resonated with me and I think this is what's happening here. When I was doing the 180 (didn't know OW was in the picture), WH said to me later he was swinging between OW and me and he was slowly coming around to us, but then I found out about OW and issued ultimatum. He chose her. I wonder now if I hadn't if he would have swung more my way.