I can understand your feelings and reasoning, but I am worried that your current frame of mind is not helping you. You once posted a nice story of how to catch a monkey and how letting go is the unthinkable but the only solution.
I am not saying give up. We have all come across marriages that have come back from the seemingly impossible. It can and does happen.
But dwelling on it and being dragged down by it, will not help either you or your M. You need to accept how you feel but not be ruled by it.
The only way to change you or your situation is by what you DO. I have read loads on pma,on happiness, on well being, on relationships etc and that is a key shared by them all. That is why we put together goals and action plans.
V will.help with your thinking, but I found the website" excel at life" to be full of great (free) help with the mental aspect of our journey.If we are not in the right mindframe our actions reflect that.
Happy thoughts
R 25 years M 14 years S11 & S13 Working on it alone since Oct 2014 M in trouble a lot earlier (~2 years) Feb 2016. 1st R chat in a yr. Next R chat Aug'17 Still together