You have to understand that this isn't about you, it about him, his issues, his character flaws, his self-esteem, his immaturity etc.
Me and my DH are a year down the line from his affair, in the beginning he blamed me for everything, demonised me etc as it was the only way he could justify the affair in his head. Eventually (and as we were trying to salvage the marriage with counselling etc) he had to understand that it wasn't all my fault, he had a part to play in the marriage breakdown and it is only in the last couple of months that he has accepted that his behaviour during the whole of the marriage was mainly to blame for what went wrong. He was arrogant, had a hugh sense of entitlement, was manipulated and was manipulative as well, behaved "like a five yr old all his life" (those were the words of the therapist) and had never grown up and taken responsibility for anything. My behaviour towards him was mainly a reaction to his behaviour (but I could have done certain things differently).
It takes a lot of self analysis and self reflection etc to get to this stage, it is a very painful process and very hard to admit to yourself that you have those flaws etc. I have also had to look at myself as well but this has been mainly in a self-improvement way, making time for myself etc, doing things just for me. I had given so much to the DC and the marriage, that I got lost along the way.
You will never get your H to face up to things, it is something he has to do for himself and it maybe something that never happens. The only person you can change is yourself, how you react to things, choosing not to react to things and "play his games", detaching from him etc.
That was one of the hardest things for my DH, he saw me changing (albeit in small ways), realised that in no way was I this ogre, devil woman whatever and had to look at himself if that makes sense.
Good luck and look after yourself.