my own best friend .

Crissy is a normal 17 year old.. that gets bullied. a whole lot. the worse part is that it's her best friend bullying her. Justin was her only best friend when she was new, but ever since he started dating this slut Jazmine, he's changed. completely. it went from hugs to punching, from talking to yelling, from being sweet to just cursing. the fact is that i'm his little "secret". how? oh its cause he's still texting me , and being that sweet innocent guy i use to know. just in school, in front of everyone he's a jerk.. he doesn't wanna show everyone that me and him are bes friends, cause it'd ruin his "rep." or atleast thats what i think.. what's the truth behind this? what'll happen next? will he change?