I just wanted to come here and let the OP know that I understand what their struggle is. I suffer from the same affliction. My AH has always said I was the most loyal person he knew, yet he would take that loyalty and take advantage of it by lying, gas lighting, blaming, etc. I could never understand why what I put out in the world wasn't coming back to me, it was coming back all twisted up and misshapen.
I had to remember, though, that humans are humans just as I am and that they are going to fail, just as I do. Even though I know this, I still struggle with resentments and it's something I am truly working on daily at this point in my own recovery. Taking the focus off of them(whoever they are) and putting it on me and working on my own character defects (of which there are plenty). I have enough work to do, I certainly can't fix someone else.