Here is the abridged version of my story:

My wife came to me last November, a few weeks after our 1 year-old son was released form the hospital after a very serious battle with respiratory problems, and said she was not happy with our relationship and didn't love me anymore. She also said things like 'I don't know if I ever loved you'. These issues seemed to get pushed to the side through the holidays and in the new year I suggested we see a councilor, which we did for a few weeks. That didn't go well and nothing was accomplished. Come March my wife let me know she had spoken to a lawyer about the process of divorce. In April she filed and I was served with papers. I made arrangements to move out of our house, getting myself an apartment. A week or so before moving out I had a look at her cell phone and found texts revealing an affair she was having with a co-worker (I had been suspicious for a few months). Come to find out she had been in contact (read emotional affair) with this person when our son was in the hospital and the physical aspect started around March (the time she started pursuing a divorce). I have been out of the house since late May. In June I asked her to go to 'A New Beginning' marriage in crisis workshop which she very begrudgingly agreed to. Things went moderately well there and we left with her saying that she thought we worked well as and could move forward as friends. A few weeks after returning from the workshop she took a trip and upon coming home was very bitter toward me and still is to this day. I have been pursuing self improvement and activities that I find pleasing, focusing on the things I have control over.

We have had discussions lately (all initiated by me) in which she has seemed very irrational. I would describe it as being like a wild animal that has been cornered. One example of this is that I told her that I was concerned about something and she replied, very contemptuously: 'It's good to know that you care now'. I told her that if I didn't care I wouldn't have put in all the work that I have, I wouldn't have paid to go to a workshop, and I wouldn't be with here right now trying to work out some of our issues. She shot back saying: 'Well maybe you don't have anyone to take your stress out on, maybe you want me back so you can yell at me when your stressed'.

Ever since finding out about the affair my wife has wanted to blame me for it happening and has seemed to use that to justify the affair. In one instance she flat out said that she didn't do anything wrong. I feel like I have shown my wife that I have improved myself and that I have addressed some of the issues she pointed to as problems in our marriage.

There have been a couple of other interactions like the one above and I am wondering if this is how someone acts when they are running out of things to point to that justify their actions, when their delusions are falling apart?