Snapchat problems

I've been taking a break from Snapchat for the past week and a half because my friends were giving me some anxiety and today I logged in to post a 50🔥. I went to our group chat and one of my friends had sent one of those buzzfeed sticker things. It was something like "paste a sticker of someone who is trash" and they'd stuck a sticker of me. Normally I'd be fine with that because I would be part of it but they did it behind my back! Now I'm really worried about what else they're doing behind my back. I'm really pissed off and considering deleting Snapchat so I don't have to deal with their crap anymore.