What's the worst confession someone has made?

For me there was this guy I was friends with I know I sound rude but it's the truth I had no ounce of attraction or anything other than friendship really.

He (person 1) indirectly confessed to me a bunch of times, but of course I'm not them stupid anime characters that I don't get what they mean like when P1 said he "liked me most of all", in the morning with a group of people and then said it's a joke. I even indirectly rejected him I forgot how tho.

One day he confesses on a flipping group chat to me. I wanted to punch right through the phone.
Plus we have this friend who he told first P2 (not to mention he probably thought I was dense but I kinda just didn't wanna say anything cause it's not like he confessed or anything)
I didn't straight reject away either I mean how could I with a GROUPCHAT.
It wouldn't have been that bad if it was the private chat.

I guess i tried to move on and invited the group to make some revision booklets in a public library but then P2 kept on bringing it up so eventually i got riled up and mentioned to the other group member (P3) that I'm gonna reject him directly but in private chat text. When, I mentioned that to P2 thinking he would understand he literally starts saying I have something to tell P1. And I kept on saying that I didn't want to, to P2, P1 seemed to get what that was all about and left in anger I think. Soon after went since no way work was getting done now.

Later that day i did the text message rejecting P1. He stopped talking to me for like half a month and then started talking to me again like it was nothing. I still talk to all of then but I cant forgive P2 he still doesnt get what he did was wrong and I still feel annoyed the way P1 confessed.