"When I was a boy, I met a young girl and I fell in love. She was... everything, Draco. Brilliant, one of the most brilliant witches I’d ever met, until recently. She was intelligent, kind, brave, and beautiful. And she belonged to someone else. I was a child. Then we were teenagers. Then we were young adults, and I let my hatred and rage toward her friends and her husband overcome my love for her. I made all the wrong choices, Draco, and I failed to protect her," Severus swallowed and looked away, "On October 31st, 1981, she was murdered."