Anna Kendrick fell for introvert who was so not into her

Actress Anna Kendrick is still puzzled why she fell so hard for a guy who clearly wasn't into her.

The Into The Woods star admits she still has feelings for the musician and screenwriter she dated a decade ago, when she turned 21 and struggles to get past the fact he moved on so quickly after they split.

Now 31, Anna has opened up about her relationship with "Connor" in new book, Scrappy Little Nobody.

In an excerpt released by Glamour magazine, she writes: "I thought he was a musician and that we were dating. He thought he was a screenwriter who occasionally played music and that we were 'hooking up and not labeling things because labels cause drama'.

"He was 28 and something of an introvert. I took this to mean that he was deep and artistic and probably judged me for talking as much as I do. Once we broke up, I realized it just meant that he was kind of boring.

"Looking back, it's hard for me to understand what I was doing. Why on earth would I pursue someone who had no interest in me...? Part of me knew I was only determined to bring him around because he was resisting, but the idea of acknowledging the rejection hurt more than pretending the relationship might be going somewhere."

The Pitch Perfect star admits she doesn't recognize the girl she was when she was with Connor, and she has no idea why their break-up hit her so hard, adding, "I cried. So much. It was hideously embarrassing. What had happened to me? This guy so obviously wasn't into me, we weren't ever really together in the first place, and I was behaving like a messy trophy wife who'd just been told the prenup was ironclad."

She moved on to shoot a film in Indiana, but she "cyberstalked" her ex online and discovered he had moved on with a girl named Erika, who was part of his circle of friends when he was 'with' Anna.

"Recently someone who still knows Erika mentioned her to me," she reveals. "I cringed: 'That b**ch!"