I do know this…if the student loan is only in Your Name, you can fill out a form on your taxes that they will only take your tax return amount and not your husbands.
My husband & I have been doing it for years now. You want to go to the below page
You want to file for–Equitable relief
If you are not eligible for other forms of relief, you may get relief from paying taxes that your spouse understated or underpaid if it would be unfair to hold you responsible based on all the facts and circumstances.
This is the form
Instructions for Form 8857
I hope that helps you
Barbara Harris