In 1998, as Joey and Dawson shared their first kiss and Felicity agonized over Ben and Noel, poor Buffy Summers murdered the love of her life. Watching that episode some 15 years later, as a woman well into my 30s, I cried bitter tears. As she made out with her ex-boyfriend, stabbed him in the stomach, and looked on in horror as he got sucked into Hell, it struck me as the most harrowing and…