Just bought a 1 way non-refundable ticket to Dtown

[SirPrizeMe]

Why is she doing this?
the same reason many wives do it.

Once they start down the path, they cannot find the off-ramp. They can't get off the train. Doing so involves admitting a severe wrongdoing, and that is devastating to their own self esteem. The ego won't allow it. Self preservation demands that she stay the course, even if it means destroying a family, a marriage, even destroying you or the memory of you. (Demonizing you, rewriting history).

and then what Michael said comes into play - they will always find someone to validate their actions, their need to escape the marriage. Some of those people are practicing counselors.

sad.

I feel for you H4C.