@Mmmmdanone
Are you sure you are not talking about my DH? OMG. Exactly the same. We have been together 26 years. He is not physically abusive and was a great dad to our 3 kids when they were young. He also cooks, so most of my friends thought he was an angel. As a partner, however, he is horrible. He literally thinks he knows everything, he does everything the best, he will put you down, laugh at you, criticize you. We DO have communication problems. We cannot talk. That is, if I say something is bothering me, he is going to go into defensive, immediately, he will start arguing with me. He never listens properly, try to understand, say he is sorry or try to change. Eventually he will stop talking to me and this may last days, weeks, months. Also, he is very cheep and has always been controlling when it comes to money.
Two weeks ago, I told him I want out of this marriage. Same thing as yours, he said that none of this is his fault, that I want a divorce, that he thinks I did not try hard enough to work on our marriage... and all that BS. For a moment there I felt bad, well he is right, I do want out, but later I realized what he is doing, he is blaming it all on me!!! I do want to leave but it is because he is an a-hole!!!
Sorry about my language and my word explosion, I could not control myself. I am so mad, so full or rage. You see even now, at the very end of this long and painful relationship he cannot admit that he is at fault, apologize, ask for forgiveness or do anything, really useful or helpful. I am just so sorry that I wasted best years of my life with this man. Really.
We are also still living in the same house, and I told him I wanted him to leave but not yet, as he has been trough a lot and has lost his job, but he told me he will leave in July. In the mean time, living together is hell. We do not talk at all. I would like to at least pretend for the sake of our kids because we did not tell them yet, but no, not a peep from him and he knows I hate this. He said, "good luck explaining this to the kids.", but somehow I think, well I hope, that my kids will understand.
Just hang in there. I think that you are past explaining and arguing. You made up your mind and are ready to leave and I am somehow certain that he is not willing to listen and understand anything. Sending you virtual hugs. Stay strong.