TOH, I know exactly how you feel. It is infuriating how these men destroy lives.
My therapist tells me I keep banging on a rock (h) trying to get it to talk to me. I keep banging and banging for answers and nothing happens. So, let's face it, I would rather pick up the rock and throw it at h's head (oops, did I say that out loud?). But at some point, I have to realize that the rock cant talk, so I need to stop banging it.
I guess she is telling me, in her therapists' way, that it is futile to expect these men to be able to understand what they are doing. And the only thing we could do, is to stop expecting answers and get on with our lives. Easier said then done, dont I know it, but necessary all the same.