Okay, so a couple of weeks ago I made a Snapchat group chat, and let's just say I may or may not be getting bullied to a degree. I am fine, not going to kill myself or anything, but to those who are getting bullied by people who are your friends, let me just tell you whatever they are saying is false. In my group chat, they asked me for a photo of myself, and remember these were 'friends,' so I sent a cute photo of me privately to someone. S/He saved it and sent it to the group chat, I knew she was going to, and all of the people started saying I got uglier since the last time they saw me. Even one of my many crushes. I knew they thought I got a degree more pretty, so I ignored them and just 'played' along. All was well for me.
This is just what worked for me. It may not work for you so you can, and I encourage you to, tell someone about it.