Kind of sounds a bit like you are still trying to "be of help" to her, etc...I did that with my first divorce..Mother of my kids, etc, etc...we stayed in the house together..huge mess...I volunteered to take care of getting a CPA to do our taxes as a separate party rather than joint and I wrote the check for her taxes to "help her along"...she didn't have a job so I made sure she was "taken care of"...in short we used the word ...Divorce..and like the toothpaste..once it's out of the tube there is no putting it back...I paid her taxes, I paid for the CPA....I fixed her car...I made sure she had a job before we parted company, etc...in short I was the one trying to "fix things" and since divorce was coming it was a serious mistake. I wouldn't have needed to be mean or nasty but I did need to realize things were changing and she and I would not be together any more so time to let go and move on..
One time after the divorce I was near her place and stopped in to see my youngest son...her car was parked at the curb with bald tires...I mentioned it to her and offered to help out...her comment was "they are my bald tires now and you have no concern or say in how I live"..I said "I just want the best for you" and her comment was "the best for me is to have you gone"..end of any offers to help or meddling or offering...I was gone, moved on and live went on...she got remarried as did I and she did just fine without my help...cover your own fanny without animosity and let it go.