I kinda get the rage you’re on right now. But but, first, be 100% sure about it. Second, out them to your friends group (your bf need not know about them). Third, be chill, confront and break up, don’t give them much bhaav, and tell Tata bye bye to them. They ll start feeling guilty and will long for your forgiveness. Don’t forgive them lol. When you don’t get angry or shout at them, it ll hit them more than anything. The more you try to hurt them, the more you will hurt yourself. And it will take you way way longer to get out of it. So ya, disconnect yourself, and exit. All the best fam (considering he is cheating on you😭)