It's not a cliche. There are probably a million answers to this, and you have some excellent input on your thread, and it's really what it all boils down to, for me anyway.
I found myself paralyzed by resentment, not once but twice, and so this is an important issue for me. I doubt, at this point in my life, that I have it in me to be in another long-term committed relationship. But if I do, I want to know that I have some resources, some tools to avoid ending up where I was, again. At the moment, what keeps coming back to me is that I made bad choices to begin with. That I forgave until I lost myself, that I communicated but wasn't heard. That really, most of the time I gave it all I had but it takes two. And two of us just weren't doing it. And I can live with that answer.
M60 H52 D20 M14 yrs OW-old gf from 1986 bomb-5/18/08 H filed for D-9/10/08 D final 4/24/09 xH remarried (not OW) 2012