You both will still have to pay your student loans, even if you marry as students, it doesn't matter who is still in school, once you have to repay, then you have to repay. Also, his student loan or your student loan while not in repayment will possibly be assesed as income if applying for relief:
If you ever intended on applying for interest relief (where you don't make your full monthly payments for a certain time because you feel your income isn't enough to pay them), they will judge your eligibility based on your household income, not your personal income. So they will combine both of your income, and you have to report all sources of income, including current student loans not in repayment, and they will say "Yep., you guys make plenty of money to pay your student loans back" and will expect payment in full for your monthly payments.
The best thing you could hope for though is that they may not require him to report his student loans as income (depends on where the loans came from if they will or won't require you to report it as income), and then they'll consider you a famliy of two living off of his income alone (or whoever is the non-student), and they may allow you to apply for relief.
But relief only lasts temporary intervals (for instance, 6 months at a time), and you will have to re-apply. There is also a limit for how many times you can re-apply for relief.
Also, if you -don't- pay your loans, they will take your joint tax returns from you to put towards them when married. When you get married, you incur the debts of each other. Your personal debts because joint responsibility, that's about it.
My ex husband was a student for a time during our marriage. And I've also been dealing with student loans for 8 years now. They only care about two things: Your income (which, when married, means "household income" from all sources) and When are you going to pay them (since they'll assess you to be making enough money to repay without a problem). Student loans has little to no loopholes.
~ Lynn