Dude dares to call himself a loner yet he didn't bring some noise canceling headphones or earbuds to listen to music on the bus drive.
Part of me sympathizes with being stuck in a group event where you have nothing to talk about with other people and bounce between eating food and using the restroom. The other part of me is increasingly annoyed by the MC shoving away anyone who wants to talk to him his "I can't infect you normies with my lonerness" shtick. It's not even like he dislikes the people going out of the way to talk to him. He's just being rude and lamenting the fact that he has no friends afterward.
I don't even sympathize with him being stuck in a group event, mostly because I'm too frustrated with his attitude. It'd be different if he genuinely didn't like talking to people or was easily annoyed at these events and just said that (I always get agiated and anxious at large social events and just have to shut people down before I snap at them) or if he had to deal with something like anxiety and panic attacks at these events (also guilty) or if he just truly did not enjoy the company of other people. I don't think that would last long in life (humans are social creatures), but he's a high schooler and it's not that strange to hate everything during high school.
But he's shown no signs of any of that. So far all he does is complain about how much fun everyone else is having, say he doesn't need to talk to others because he's a loner with experience from having done it before, genuinely seem to enjoy the small group or one on one conversations he has with the people that want to be his friends, and then tell them to stop using some BS social hierarchy excuse despite having no evidence to support talking to him harms them in any way (the girl here was literally still the most popular person in class in every scene we saw her with her classmates).
There's nothing wrong with having smaller social circles or not being able to do bigger events well. But I'm not giving a crap about someone who treats themselves and anyone that tries to be nice to them like this. How he responds to people wanting to be his friend is also incredibly rude, like was he raised in a barn? Asking them if it's too much/telling them they don't need to once or twice is fine. Anything more than that then you're just insulting the other person. If he truly doesn't want to talk with them that's fine but needs to be conveyed clearly for that reason ASAP (not because it hurts them to talk to him).
I really do not like this MC. I thought I did at first. He was a lot more sympathetic when his story was that he just never had the opportunity to make friends or join social groups in school. Now he's just incredibly frustrating to read.