I'm sorry you had to find out like that. Speaking from experience, losing a friend is hard. A couple months ago, one of my friends blocked me everywhere out of the blue, and it was really, really hard on me for so long, but I spent time on my hobbies, improving myself, self care, getting back into K-Pop some more, being with my cat, ect, and it helped (and so did time). You deserve friends who treat you kindly, not ones that will get angry at you a lot.
Of course! You can always shoot me a DM or post on my wall, whatever you're comfortable with. I know I'll never meet my biases, and even though I'm quite extroverted, I'm also anxious and would be too scared of saying or doing the wrong thing in front of them. Instead, I try to be the kind of fan that they would be proud of (at least in terms of personality).