I say dont kill yourself because of him. Get even
It was a she, and she did it because I was in love with the girl I had a crush on instead of her. To make matters worse, my crush and her were BFFs, so it was trivial for her to turn her against me.
If there's one thing that's been made clear to me over my lifetime, it's that karma does not exist and is something delusional people tell themselves in order to cope with being screwed over. She got the disney-esqe happily ever after romance and marriage she always wanted. No reckoning ever came of her destructive and malicious actions that thoroughly destroyed me and whose fallout permanently stopped my life in its tracks over a decade ago. Just like nothing ever happened to my father's business partner who wrecked his company, career and our family, and drove him to drink himself into an early grave.