I'm in a group of friends where we've all been friends for years, we all talk to solve everything and everything is always a lot of fun between us. however, a specific guy from this group is always with trashtalk and always cuts the mood of the fun game we're playing, because everything for him is an absurd competition and he can never have fun, he just complains about everything all the time. it ends up draining me mentally, everyone in the group is bothered by it, but everyone accepts it as "oh relax it's normal, the guy is like that" Am I wrong to feel bad about putting up with someone like that? and if I get into a fight with him over that I'll end up losing this group of friends of mine. I'm just tired of it but I want to have my friends...

Sorry about my inglish, its kinda rusty