Your reaction is the only part of the drama you actually own.

Whatever started it is already out of your hands. Who said what, who screenshotted it, who took a side in the group chat: none of that runs on your permission. The one moving part left is what you do in the next ten minutes, and that part is completely yours.

When something lands badly this week, put the phone face down and wait until you have eaten or slept. Then decide. Most of the damage in a conflict happens in the first hour, and almost none of it turns out to have been necessary.