would u care if u and ur ex friend got into a fight on ファンポップ and then it got worse and all ur フレンズ had to get on ur ex bff and tell him off would u? a: tell him to go shove it または B: go alone wit what everyone else says.
Depending on what the fight was about, I would just drop it. Anger can hurt あなた as much as it does others. If あなた go along with what everyone else says, あなた might say something that you'll be sorry for later.