Wishing to remain anonymous while talking to Daily Mail TV, she has spoken out about her relationship with the murderer for the first time in 40 years.
She explains what it was like spending nights with him, detailing how he would sit around for hours and "admire the knives he allegedly used on his victims".
She believes that she "escaped being killed".
The now 71-year-old woman revealed that she had met Ted Bundy when he moved to Utah in 1974, claiming that they dated for "several months" while living in the same building.
"He played the part really well," she said. "I think that I was a respectable front [for him]. As long as he was with me he was all right because I looked nice, my family was nice."
"I’ll never forget one night I stayed overnight and I woke up in the middle of the night and I said, ‘Ted, where are you? What are you doing?’ And he was through in the kitchen and he said, ‘Oh just looking at my knives.’ I thought about that later and I thought, ‘Wow, I just escaped being killed. Except that he knew better than to do it in his own apartment.'"
She then described the night a girl went missing on Halloween, and how Ted came into her house while she was sleeping.
She said:There was a girl who disappeared on Halloween night and was killed. And on Halloween night he came to my apartment when I was asleep because my door was partially opened because the rug was preventing it from closing.
"I was in bed and he came in and said, ‘I want to tell you that your door is opened and unlocked.’ He woke me up. And I said, ‘Oh thanks Ted,’ you know. He did a good deed and he also killed someone that night and I didn’t notice a thing."
She finished the interview by saying that she never really knew what was truly going on inside Ted's mind, but when all of the allegations came out after they broke up, she immediately believed them.
Watch below... Extremely Wicked, Shockingly Vile and Evil trailer: