I am getting weird vibes from my classmate and need this off my chest

So I’m 23F and I’m in med school. My bf(24M) is also in med school and my senior.

So I’ve a male classmate who is always trying to study alongside me even when I need some alone time during breaks. I don’t tell him to stay away because I feel like that’s kinda mean and other students also like hanging out with me during breaks. So the past few months I’ve got to know my classmates but I am getting this weird feeling that my male classmate has something against my bf. I mean, my bf is our senior and he hasn’t met my classmates but for some reason my classmate is always throwing shady jokes about my bf. Idk why this keeps on happening but there have been a few instances like:
1) Our year and my bf’s year had a similar test on the same day. I was done earlier so I was waiting for my bf. My classmate was also done and tried to wait alongside me even though I found it weird that he was waiting for my bf he had never met. All the other students stayed for five minutes and then left. I gave him several hints to catch the train and after almost an hour he finally left because my bf was taking a long time to finish the test.
2) Every time I see my classmate, he makes weird comments about my bf. Things like “oh he probably drinks a lot” or “doesn’t he fast during Ramadan”. Last week, I was talking about how lucky some of our classmates are for having their own student room so they don’t have to wait two hours in the library for our next lesson. My classmate suddenly made an unnecessary and mean remark about something and then proceeded on saying “doesn’t your bf have his own student room?” I said “no he still lives at home”. I felt like this was totally unneeded to say and that was the moment I realized that something is wrong with my classmate and he has something against my bf he has never met.

I just really needed this off my chest because I am getting weird vibes from my classmate. In the beginning I saw most of it through the fingers but now I’m starting to feel like something is wrong and I just can’t put my finger on it. It’s like he has something against him even though he has never met him.