Let me assure you that personally, I believe no one is bad. People only do bad things because they think they have no other choice and are driven by lies and insecurities and worries that corrupt their thinking. But that’s just part of being human. Maybe that applies to you now but it could also apply to your friend. I’m not defending them but maybe they’re afraid of confrontation.
If I were you, I’d calm myself down (i.e tell myself everything is going to be alright) and if you’re able to - arrange a meeting with your friends to ask if it seems like you’ve been taking out your feelings on them. Like Erin said, just explain and apologise and if they won’t at least listen, they’re not worth it.
Don’t accuse them of leaving or ignoring you though or they will automatically become defensive.
If you still aren’t managing to speak with them, I’d give it some time. Maybe they just need their space but if they’re still ignoring you after, like, a week and aren’t making an attempt to talk to you, it’s best to move on. You shouldn’t unfriend them until you know for sure that they have no intention of making up.
This is just my opinion though and I hope even a little bit was useful. Good luck~