TL;DR Do I settle for easy daily sex in an LTR or move on if I’m getting bored? Even if I have no choice but to see this girl nearly every day for the next few years?

To preface, I go to a university far from where I have lived my entire life. I knew no one there before going there. 3 years in, I have made friends, fucked a few girls at the university and the area surrounding, and generally established myself well. A few months ago, I hit it off with this girl who is in literally all of my classes as we share the same major (theres a group of about 10 of us that have basically all the same classes and the university is small anyways.) I knew this was a bad idea because I have no choice but to see this girl multiple times a week until I finish this degree. Anyways, turns out sex is bomb as fuck. Fucked her for a while and turns out pretty compatible with interests and shit too. So, I made the decision of committing to an LTR. In hindsight the relationship I had/started with her was clearly based on sex. Bad move? Fast forward to now, currently overseas and haven’t seen her in quite some time. The feelings I managed to develop have almost worn off at this point. Haven’t cheated yet but I feel almost as if nothing is stopping me at this point. Basically wondering if its better to call it quits or keep her on for the awesome sex and chill times when I return. She’s cool and everything seems to be going well up to this point, other than me just feeling bored. I think maybe its just a feeling of me wanting to get my dick wet again, but I also think a part of me is keeping her just for the easy daily sex when I get back to university.