I am sorry Eesha, that sounds hard.
In my case though, ex had lost all interest in me for a long time, and was also very critical. Maybe he now thinks he has found nirvana.
He answered the phone to her once when I was in the room, and the loved up look on his face was akin to his having been visited by the angels. Normally he made the calls to her when I was somewhere else in the house, but I still heard the hour long extremely late gentle and kind rumbling of his voice, and knew what was happening - if I went into the living room (he thought I was in bed but I sometimes decided no, fuck it, I am getting up
) the conversations would instantly stop - which must have been prearranged with the other person.
At other times I was so upset and angry I left the house for midnight walks. Or came downstairs and started cleaning the kitchen while he was on the sofa (where he had been talking to her on the phone).
We were completely estranged but living in the same house. He was being really horrible about the divorce and was on several occasions very verbally abusive - my solicitor wrote to him about it in the end. I used to think that I bet this new person has no idea what an utter bastard you can be.
I think he behaved callously. He gave no shits that he was carrying on this new relationship while still in the house - it was kind of saying to me that since I had instigated the divorce, that gave him licence to instantly, obviously and insensitively move on.
However I was obliged to instigate the divorce, and largely due to his behaviour towards me. He thought he could stop it first by ignoring me and it completely and being rudely dismissive, and then when that didn’t work by being nice for two seconds, but also manipulative. When that didn’t work either, he was with this new person literally from one day to the next, and reverted to being completely horrible to me.
But I guess I have to accept that she might be a nicer person than I am, or better suited to ex. On the other hand, I have spent so many years trying to deal with ex’s emotional abuse that I don’t even know how nice and kind I could be, because I have been firefighting for so long and defending myself. In the end I had to disengage completely, so it is as if I am like ex and using the silent treatment as a weapon. I wasn’t doing that, I was trying to disengage and put an end to an untenable relationship.
So he must think I am a bitch, but all I have done really is stand up to him and say that a lot of his behaviour (verbal abuse, manipulation, short temper, silent treatments, financial abuse - all big financial decisions were his, the family home could not have my name on it as well as his, he had bought secret property...) was unacceptable.
So I have set massively new boundaries, and I now have control over my life, don’t have to walk on eggshells, and my name is on the property I live in. After years of not being to lay down any terms, the terms (of my life, the settlement was fair to him as well as to me) are all mine.
He now hates my guts however.
Apologies for the essay!