Not wanting to be facetious or make light of the question, but this exact situation occurred a few years ago in The Archers (Radio 4 rural soap.)
The older, non-student partner insisted on an expensive flat far from the university.
The student partner was thus isolated from potential friends from the start. Couldn’t / wouldn’t hang out with other students after lectures because boyfriend would feel neglected.
Student never felt able to invite peers over - too far and situation too untypical.
Non-student completely failed to keep up financial obligations leading to huge pressure.
The student had a miserable, lonely student experience, fell behind with work and dropped out of uni.
They both fled back to her family home.
Months later bailiffs turned up there to recover £5k in unpaid rent …
So it didn’t end well. The student found a call centre job for a while and eventually took up a new degree subject at her local uni. The relationship didn’t survive.
Probably not much help but I’d imagine that’s how this situation generally develops.
I think when people are older, doing postgraduate degrees, say, it can work perfectly well. But for a first degree a student really needs to be fully immersed amongst their peers to get the most out of being a student.