I had found some good ones in a local library and had read them there itself while taking off from work without telling my spouse. There was no opportunity for me take these home for reading and nor create any electronic record. Life was just too tough, as you can see.

Here are some recommendations. Only the first one qualifies as a 'particular' one.

1. Human Relationships, Steve Duck. I had read the first edition and found it very insightful.

2. Another one that was very helpful was focussed on when it is the time to quit. I have linked a few similar ones below. The one I had read had a quiz after each chapter. I recall that for the first one, it said that a score of 3 out of 10 indicates your the situation is nearing borderline. (My score was 8, i.e. well past.)

3. There were several on the topic of divorce. These often include advice on the above as well.

4. There was one on how children react to such situations.

I had also read some that talked about how to save the marriage, etc.

For item 2 above:

Stay or Go: Dr. Ruth's Rules for Real Relationships https://www.amazon.com/Stay-Go-Ruths-Rules-Relationships-ebo...

Should I Stay or Should I Go: Surviving A Relationship with a Narcissist https://www.amazon.com/Should-Stay-Surviving-Relationship-Na...

Should I Stay Or Go? https://www.amazon.com/Should-Stay-Go-Controlled-Separation/...