WWE wrestler Mickie James's obsession with Trish Stratus went from hero worship, to dressing as Trish on Halloween, to trying to become Trish's lesbian lover (and abducting her boyfriend in the process), to beating Trish severely and licking the blood off her hands afterward. Somehow, when their climactic confrontation for the WWE Women's Championship came, she still got cheered.
Possibly because the writing was so over-the-top, it was impossible to take seriously.
Earlier, Alexis Laree herself had one in Ring of Honor, Allison Danger
Kane would count, but the stalking doesn't last before he just grabs the woman and walks off with her.
Kane has done this at least twice, first with Lita and later with Kelly Kelly. The first time he was played as a heel but was gradually shifted to face after the story shifted from him stalking, tormenting, and technically raping Lita, to Lita having a miscarriage and losing their child and Kane going out for revenge against the man who caused it, to eventually Lita betraying Kane for Edge. The second time, Kane was portrayed much more sympathetically from the get go, it starting from an unfortunate misunderstanding. It helped that one, his romantic rival in this case was Randy Orton, and two, that the storyline fizzled out before anything came of it.