Paul, I actually thought that was a truly depressing post you made, but I am only an amateur phsycologist, not a qualified one.
We ALL face these issues. When my sons were born, guess what. I gave up flying at the weekend, gave up a display routine, and spent the weekend with my wife and kids, where every father should be.
Ok, I was fortunate, I took every Wednesday off, MY day I called it, and I went flying. It kept me alive, kept my family fully functional, as a pose to the rest of the dysfunctional's, nowadays, and life went on. Still built up over 1100 hours, and now I am back with a full schedule, my kids are now older.
That post echoed that something else may not be quite right, not all to do with flying. Tell you what, pour a large Gin, go outside, assuming it is not raining, and have quiet word with yourself.
Works wonders, trust me