I am guessing he is fairly happy as he is keeping busy running to dog shows every weekend and probably training classes or training somewhere during the week. Going out to dinner and no responsibilities.
But, deep down is he TRULY happy? Does he know himself? I don't really feel he does. His way of living his life is to live it through someone else in a way. Obviously this is my perception of what he does and he probably would say differently!
I understand completely what you are saying.
You mention him running around - busy - from other things you've said, absorbed into someone else's life. If he stopped for one minute, spent a little time alone - would he recognize the man in the mirror? Sure it's what you see, but who's to say you don't see the truth?
The truth will come out. My H has been true to his patterns. And if it is who he honestly is, then so be it. I have a better idea who he is now then when we were together. And this is the right thing to do. Morally and ethically we have some BIG differences. And spiritually. All this didn't surface until about 6 months into our marriage. But that's a whole 'nother story.