John F. Kennedy Jr. and Carolyn Bessette’s passionate romance was inescapable in the ‘90s — with tabloids detailing their public outings, apparent fights and eventual tragic deaths. But for many Gen Zers, the famous couple’s high-profile marriage was unfamiliar territory — until the release of FX and Hulu’s “Love Story: John F. Kennedy Jr. & Carolyn Bessette." The show, executive produced by Ryan Murphy, is a dramatized version of the former “it” couple’s tumultuous romance, including their 1996 wedding and the plane crash that killed them three years later. Since its Feb. 12 debut, the anthology series has become the internet’s latest obsession, as fans — old and new — post videos analyzing how the show captures the ‘90s New York aesthetic, Bessette’s wardrobe, and the couple themselves. It’s an audience that Paul Anthony Kelly, who portrays JFK Jr. on the series, did not expect would find the series.…