Because you like Anya Jenkins in Buffy the Vampire Slayer
Ezra Fitz is a young English teacher hounded by his own relationship mistakes. See them in Pretty Little Liars.
Free-spirited Annie Hall goes through life saying "La-di-da, la-di-da, la la." See them in Annie Hall.
Rick Dalton is an aging actor with insecurity issues. See them in Once Upon a Time in Hollywood.
There must be quite a lot of fellows who haven't got anybody to bring them tea in the morning. Bertie Wooster is lucky to have his valet, Jeeves. See them in Jeeves and Wooster.
Haley Dunphy's interests include shopping, dating, and avoiding homework at all costs. See them in Modern Family.
Irene Adler has to use both her brains and her body to survive. Luckily, she's usually the most brilliant person in the room. See them in Sherlock.
Carol Peletier's credo: your strength comes from who you are, not who you used to be. See them in The Walking Dead.
Rose Tyler may have not done too well in school, but she's certainly holding her own in space. See them in Doctor Who.
April Ludgate doesn't like sunshine. She's more of a blood and guts kinda girl. See them in Parks and Recreation.
Morticia Addams hates anything bright and cheery and loves all things ghoulish, ghastly, and violent. See them in The Addams Family.