Hi DaddyBear77:I think it's important to share financial decisions in a marriage. If her mom co-signed for her, then you can let her and her mom repay the loan. You could enforce a boundary that the repayment must come from her mom or from her future employment.
If you don't set a boundary now, what financial obligation might be next. Might want to take caution with credit cards that you name is on. I believe in picking your battles. Got to decide which hill you want to die on. This would be an important battle for me. You have to make you own decision on how to proceed. Everyone has their own values.
You could also make the argument that getting a Masters would help her gain employment afterwards, but in the field she's pursuing, there is an EXTREMELY low possibility of making a reasonable income. I'm not being pessimistic here - I'm dealing with actual facts.
What is she getting the Masters in? Lots of people with Masters in various fields are unemployed or underemployed. A masters in nursing, robotics, a field that you plan to be a teacher in, etc. makes sense. I've heard many stories of people with certain Masters
Degrees who are working in retail or home improvement centers. I've read several studies that indicate that many people never get a return on their financial investment, unless you have a realistic plan to pursue a career in a field in which there is a demand.
I've hear a lot of tales of woe, from listing to a financial talk radio show. Lots of people with huge loans, who are underemployed and struggling to pay the loans back.