
Basically I have a friend who I go to the gym with everyday after school and a few other friends and all school year (I’m 15boy ) he points out other people’s like insecurities (theyre short, they have a big forehead, things about their appearance, they are weak) all things that he is either the same or worse. Especially at the gym today (I think he tends to pick on me because I’m 6,2 and he’s 5,8) he said I was weak doing cable crunches with 100lbs on the machine  and then I told him to do it and he could barely do one at 40. And like I’m not an asshole I’m not gonna rub it in or laugh at him, but he would for sure do the same to anyone else. And it creates kind of a toxic environment for everyone like I’m rly insecure about things now and when I’m around him I always get kind of rly nervous or like scared that he will bring something up again to make me feel worse, so I try to avoid situations where I’m alone with him but it’s also really hard because I really like him and we have fun and get along all other times so I don’t know what to do. And I don’t think I can jsut say stop because that’s like admitting that he is making you insecure.