You dont need a reason to feel terrible, the way the human brain is it will always just sneak up on you like that.
Sorry to hear about your friend and friend group... Best thing right now sounds like to sit on everything and reflect on what you want out of everyone, and if they are the right people to ask for it or not.
Btw making enimies isn't your fault. you go through life making enimies without ever knowing how you made them and just thats a weight you have to carry
hope my words help.
wishing you the best.
phenorax
Its just banter, he got super buttmad and went into a rage. For the other, shit man, i think you need to change up your lifestyle since theres something keeping you down.