The relationship was purely transactional.
He traded years of his life to a marriage - she left with the house, the car, half of his salary, retirement, investment, property, assets, company holdings, vehicles, toys. All under the state enforced revenue streams of alimony, child support, spousal support & a life she has become accustomed to...
Even a Casino has better odds.
*PS - 1/3 of contested paternity tests show fraud - and the guy still pays.