Charlize Theron is single, and apparently she knows why.

In a recent appearance on The Late Late Show With James Corden, the actress revealed that not only is she extremely tidy, but she also is very picky in how her boyfriends dress.

“I think it’s very hard to be in a relationship with me,” she admitted, revealing that she once told her ex that his shoes were “ugly.”

“I was being helpful, I think, because men’s shoes are tricky, and he had very tricky shoes,” she said. “When he was out of town, I would get rid of the tricky shoes.”

“No grown man should be wearing straw shoes,” she added.

She never revealed who this “ex” is, but we do know she dated Sean Penn once upon a time. Sean…? Do you wear straw shoes?