snowkitten, I could have posted that last year word for word.
It was horrible, I started keeping a diary to note down what had happened each day because he would twist things and I try to convince me that he'd never done/said anything. He constantly rewrote history. He blamed me for how he felt daily. If I got sad he would respond with anger (because I was making him feel worse). By the end I would hide upstairs away from him most of the time. I felt so... squashed when he was around.
A year later? DH is so so sorry. He will talk things through with me, try to anticipate how I feel about something, and never, ever blames me for how he feels. He freely admits he was a HORRIBLE person and that NOTHING was my fault. But at the same time says that he did feel he couldn't possibly be to blame at the time.
He is not well. He is not thinking straight. He is not rational. He is not trying to do what is best for the family he is simply doing from moment to moment what feels best for HIM.
No one saw me as the baddy when I asked him to leave. I thought I'd be surrounded by "But he's so lovely!", but instead everyone rushed to see if I was ok.
I had been told I was the villain by him for soooo long that I believed it. I started counselling (when he was the one depressed) and she just listened to me and told me it wasn't my fault.
I said I just felt so frustrated and angry all the time, and could she help me stop being horrible. And she said, "Do you not think that you have a right to feel angry?".
She was right. Once I accepted that my feelings were as valid as his he couldn't squash them anymore. I got strong, I got free and this enormous weight lifted from me.
If he can convince you that you are the one with issues then he doesn't have to deal with them.
You are not to blame. You have a right to feel and to live without suppressing yourself. And so do your DCs.