My gf, who I believe is LTR material, is going into grad school next year.

Apparently, grad students party really, really hard and all know each other, behaving sort of incestuously when it comes to hookups.

She told me in a text conversation the other day that she'd "have to either fake drink or learn to drink in order to fit in in grad school. Not good." I recognized this was a shit test and said something like "Sounds decadent, I thought graduate school was supposed to be hard"

She doesn't party or drink and hates alcohol.

My question is, what's the rule on letting your LTR party without you? Do I let her get drunk with random fucking guys, or do I put my foot down and set up boundaries?