Mean girlfriend?

I’m going to be straight up and see my girlfriend and I started as an affair. I am now significantly paying the consequence in that relationship with her. Long story short, I ended up divorcing my wife because my behavior was not fair to her, and I had fallen in love with another person. We got divorced. I bought a house, moved out and began creating a place for her in which she now lives. She has not held up to her bargain for the most part, it took her six or eight months she said she to begin it. She has a daughter with the guy she was with. I also have my own kids. I get life is not black and white, but we’ve had a lot of issues.

She just seems like she’s really mean to me. I try to do nice things and I feel like I get slapped for them and put down. She always comes back with I want to do the things that I think are nice for her. So I listen to that and try to understand what is nice for her. It just seems to depend on her mood and after the fact. As long as something doesn’t disrupt her sense of whatever, she’s fine. The second I tread towards any part of her life, it’s a big fight, nasty comments and pushes me away. She’s lived with me a year and a half, and she has really struggled to tell her and has extremely slowly worked in. She let me go to her funeral, I was only a friend that was just driving for her because she couldn’t. Her sister knows about me. Her father passed a few months ago and said I would start coming around now. Her son has a birthday party tonight and I asked about it and I was told I need to back away from her and she’s gonna do what she wants her that makes her feel comfortable. That’s just today and one small example. I’m really starting to feel like a piece of shit. I took her out of state this past weekend for her birthday. I don’t feel like generally pressure her, but she hasn’t even changed her address yet. I feel like I’m going crazy. Please help.

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I want to add that there are obvious trust issues because it’s an affair. She’s always accusing me of cheating on her or checking other people out. I still feel like everything is very secretive. I feel like I’m always walking on eggshells. I feel left out hurt and alone.
Mean girlfriend?
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