<human>: Can you give me a shortened version of the text?

From the get-go, this classmate's (let's call him Bob) attitude towards me has been a bit weird, though I'd noticed he was behaving similarly towards everyone in our class. Over time, however, people split into these cliques with only myself and a few other older students left out. Bob had made a lot of friends, I did not and most didn't seem to want to approach me so I left it at that. Then I noticed his behavior had changed to being relatively friendly towards everyone except me and some other students.
   
I always try to be nice to everyone and talk to them when they seem bored, but Bob still doesn't seem to like me for some reason. He's always one-upping me at everything I say, humblebragging and talking down to me in a really annoyed, cynical tone. Whenever I ask anything he counteracts with an aggressive question that sounds more like criticism, often paired with either a side-eye or an eyeroll. The more I try to ignore it, the worse he gets, talking to me as if I were a child.
We're both students at an international university, both of European origin albeit from different countries. I don't think this is an issue.

Another thing is, Bob comes from a pretty rich family and his parents pay for everything whereas I'm poor and studying here thanks to a scholarship and a student loan. I just thought that might be important.

What do I do?
<bot>: Younger classmate behaving like a condescending prick for no reason at all; don't want to make enemies but getting pretty fed up with his behavior