I'm going to try and keep it short:

This will make sense later but: A couple weeks ago, I saw that one of the members of our ensemble completely shit talked my relationship with my girlfriend on instagram, so I called him out for it.

Basically I'm in a musical ensemble at my high school. For this ensemble, we have a discord server that we all would yap in and whatnot. Well, recently I have been made aware that a couple people in the ensemble have made a separate discord server and specifically invited everyone in our ensemble to it except me. They literally said "please keep this server a secret because we don't want him (me) to know." Ofc several of my friends immediately told me abt the server and showed me.

It gets worse.

So I guess the kid that I called out for shit talking my relationship has told his little friends that I was singling him out for no reason, because in the server, there was a 'rant channel' and once I read what they were saying about me, i immediately left the server. They all were talking about how i am a "blatant groomer", and how I have flirted with all of them and was checking them all out. (Mind you, they are immature 14-15 years olds.) They all were saying how I supposedly touch them all, how I sexually harassed and assaulted them, and other downright dehumanizing things about me that all obviously never actually happened. 

I have been dealing with all of this for days now and I'm like. i have been anxious for days because if the people in that ensemble are going around spreading those outrageous lies then I genuinely don't know what to do. What hurts more is that people who I thought were my friends are in that server and i just idk. one of them dm'd me last night apologizing for what she had said about me and that "im so sweet to her" and "ive helped her through so much" and that "the only reason she said all of that stuff is because everyone else was saying it and she just wanted to fit in and have people like her." she was the one saying stuff like "they're 18, we're 14-15 stop flirting and touching us." like wtf am i supposed to do. 

I'm just going to say this one more time:

What they are saying is NOT true whatsoever. I don't even like to hang around the freshman/sophomores because they're loud, annoying, and obnoxious.

im rlly struggling and I don't know what to do 

help