Well who knows how much of this story is missing or what she told him upfront (maybe she lied).
She states she "hasn't been working for years" and has "no idea how she will pay back these loans".
Um, get a job?
Hey if a woman wants to be a housemaker, I can't fault her for that. Probably should have thought about that before taking out some student loans, but mistakes happen. Better this than a kid from a prior relationship.
But questions like how that loan is going to get paid and what she's going to do with that alleged education is something that needed to be discussed in depth ahead of time. At minimum she bears that particular responsibility, even if we give her the maximum benefit of the doubt and assume she is perfect and blameless in everything else.
I don't think being a homemaker is bad, as long as the husband is okay with it. Clearly that isn't something you need 100k in loans to learn.
Mistakes are made, but as a man, you have to deal with your mistakes. Many females also expect men to deal with their mistakes too, and that is fucked up. So much so in this case that she wants the law to force him to fix it for her.
Conversely, why on earth did she marry someone that would be drawing lines around what he isn't taking responsibility for? Either accept her baggage, or stop dating her. You don't up the ante.