I think that in life, at some point most people will have had cause to be upset over a romantic setback or rejection.

But this goes WAY beyond what most people would be willing to do in response...
Oracle President on Billboard

"When the snows fall and the white winds blow, the lone wolf dies but the pack survives."
Winter is Coming

Now this is the Law of the Jungle—as old and as true as the sky; And the wolf that shall keep it may prosper, but the wolf that shall break it must die.
As the creeper that girdles the tree-trunk, the Law runneth forward and back; For the strength of the Pack is the Wolf, and the strength of the Wolf is the Pack.