<human>: Can you succinctly summarize the text in 1-3 sentences?

So my friends and I form a group of 7. In the group, a guy( let us call him A) likes a girl from the same group ( call her B). A likes B. But then, another guy in the same group ( call him C ) also likes B. So, B has a birthday. A decides to surprise her with a party all planned by himself ( and sponsored solely by him). A invites everyone in our group excluding C. B invites C ,wishing none to be left out. Bad things occur and the day ends sour ( including the party). Next day, A refuses to talk to B and C. C does not talk to A. B tries to talk to A but fails. B has normal friendship with C. Friendship or not though is a mystery as it is rumoured B and C like each other. Due to this , whole group crumbles like the cookies I eat in bed. One of the group member brings a pair of scissors for "self-defense" against the supposedly angry A. Me, scissor-guy and the two others try to mediate the conflict. Efforts in vain currently. Also, A and B used to be very good friends until something happened before this catastrophe. What should we do?
<bot>: love triangle in my grp between friends A, B and C. A invites everyone except C to a surprise birthday party held by him for B. B invites C. Bad things happen. Broken group.