What does punching your teammates constantly throughout the match achieve?

@DaDeDimson I just had a ranked match where I took purple magazine and valk starts shooting. I started to look around what's going on, are we being attacked, but then she keeps shooting at me.
I thought maybe the purple mag. I threw it, she took it, said thank you.

I asked if the person have issues. She said: "no, I dibsed"
Anyway, I was still trying to play my ranked well, but we screwed badly. I think that stupid behavior had it's consequences.