We’re not really sure what was going through Christina Applegate’s mind during the 1989 MTV Movie Awards, but it definitely wasn’t Brad Pitt.

The actress, who arrived to the awards show with Pitt as her date, famously left halfway through to be with another guy. And on Sunday’s episode of “Watch What Happens Live,” host Andy Cohen wanted to get to the bottom of it.

In a show segment called “Plead the Fifth,” Cohen asked the actress a series of questions about her work and love life. First, he asked if she’d ever “gone swimming in the lady pond” like former co-star Cameron Diaz.

“That means gone lesbian for a moment? No, that’s not my cup of lady pond,” she responded. (She much prefers Chris Hemsworth’s abs.)

Applegate managed to stay tight-lipped when Cohen asked her which of her many male costars was the most well-endowed, and opted to plead the fifth (while pointing to her wedding ring).

“[She’s] a married lady. She has respect!” responded Cohen.

But then came the tough question. After building up some context, the host asked: “Who is the guy you ditched Brad Pitt for?”

Being the professional, classy lady she is, the former “Married with Children” star dodged the question and instead answered a few others about that fateful night in 1989. And no, she didn’t actually reveal who she ended up with.

Here’s what we do know, though: The man wasn’t an actor but he was known to the public. She never wound up dating him, and once the evening was over, she never dated Pitt again, either.

One day we’ll find out who the mystery man was. One day!

Watch the entire interview in the video above.

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