Preggonomore - I too can relate to your story. The items you outlined that he complained about and that turned him off to you are just his excuses in his mind. They do believe what they are saying is fact. You can't argue with them. They will make it all about someone else, never taking blame until they are in the end of the cycle. Don't take any of that personal. Trust me, it's not YOU. Don't take on unearned guilt. This is NOT about you at all. Took me a while to realize that, but when I did, that's when I could get a clear picture in my head that this isn't about anything I did wrong.
Just ordered Men in Midlife Crisis to get a better grip on what to expect. One day he misses me, the next he's asking when I'm going to start D. I just keep biding my time and trying to stick to my guns. VERY HARD. I am GALing and detaching. Although I've backslid a few times, I quickly recover and keep trudging through. This is the WORST thing I've ever been through.
About wondering when it really started, if you go back, sift through the layers, you will probably recognize when the changes started. Sometimes they are subtle sometimes abrupt. But you will definitely see when it changed.
Good Luck and keep your chin up.
Me-49, H-45 M - 4, Together 9 SS-9 Bomb Dropped - 9/12 Separation - 10/12 Reconcile -2/13 Separation - 8/2013 Reconcile - 10/2013 Separation - 12/2013 Reconcile - 2/14 Separate - 5/14 H Filed D - 8/14