Oh he didn't 'decide' to leave his wife and family - we should never have married. For reasons he doesn't understand he just stayed around and participated in family life (without ever enjoying it)

My absolute favourite is his claim that the OW had nothing to do with it (well in a sense they don't) but really it is right up there with 'the dog ate my homework'

Sooooo he was unhappy for 35 years, and then this woman comes along (and boy was OW1 strange - even my xh admits that now) he decides to leave. Ummmmm it makes sense to him, and I really am too punch drunk to care.

It is actually pretty funny when it isn't too painful!