@doodler - your post is very ironic in my situation. I thought I was in a long-term, committed relationship with my wife for 25 years and as such I made certain financial decisions for myself, her, the children. None of those decisions involved divorcing at this point and having to split my income for two households.
Its kind of like the question someone asked in another thread about whether or not you would date someone that you knew would betray you much, much later. Well, here I am 25 years into a marriage after working endlessly to provide for my family, take risks, burn the midnight oil, occasionally miss events with the kids for work, etc, etc, and I've been betrayed. Would I do it all again? Yes I would for my kids one thousand times over. The harder question is in forgiveness of the WW. Can I forgive? Was it all for nothing for her? I'm struggling deeply right now in all of these long-term decisions and things that have played out over 25 years and just changed in so little time when her AP showed up and the PA took off like wildfire.
What burns so badly is her attitude of feeling 'entitled' to everything.
Me46 W46 M25yrs T29yrs 4 children ILYBNILWY 1/30/17 PA confronted 3/6/17 Separated same house