It's weird to think of serial killers with girlfriends, but part of what makes them so mysterious is that they present a public persona of normalcy. Ted Bundy's girlfriend Elizabeth Kloepfer knew him before he became a killer and thought he was normal at first. He came off as charming...but he also threatened her the first day they met.

After he began killing, she had no idea what he was up to at first, or at least that's what she told herself. But as he began to sink into his mania, she began to catch on. Kloepfer found evidence, including tools that looked like they were fashioned into weapons, and even the plaster material he used to create casts to get sympathy from his victims and then lure women to their deaths. Maybe she just couldn't believe that Bundy was capable of what in the back of her mind she knew to be true, but Kloepfer stayed with the serial killer for years before he was finally caught. The story she tells about what it's like to date a serial killer is truly creepy.