Sharing Our Innermost Thoughts

Hi! I’d like a bit of advice for friend issues…so, I’ve always sort of been the target of my friend group (there are four of us in it). Recently, someone I’ll call V, who’s very close to me in this friend group, has began to stand up for me. However, my other friends, who we’ll call A and C, have been very upset with me, specifically A. A gets very angry at me when I don’t FaceTime with her (she requests every night) and last night I really didn’t want to.
My keyboard was broken, though, and it wouldn’t let me tell her that, so I kept on just typing what I could out of what I wanted to say, which was usually just, “I I D K Jt iygK” Kind of thing.

V got very angry at A randomly, and on an adrenaline high, said they don’t want to be friends with her anymore.
We’ve been friends since first/second grade, so this isn’t just a friendship you walk out of. I’m very worried about all of this. I’m trying to give A and C more chances to change their toxic ways, but it isn’t really working. I need advice, please.