That happened to my son in law from a previous relationship.
Women can go out, bat their eyelashes, and find some guy (sucker) that will support them in weeks.
The guy gets stuck with a massive financial burden, ownership ranking on that of his high school graduation day, a lot of payments, and very little means to provide for himself for years on end.
It’s a very tough situation. It’s hard on the second wife as well. She has to put up with the antics of the ex too.