Valerie Bertinelli is “mortified” after Matthew Perry revealed their makeout in his memoir, “Friends, Lovers and the Big Terrible Thing.”

The actress, 62, posted a TikTok video Wednesday set to Taylor Swift’s “Anti-Hero,” waving to the camera and smiling as the lyric “Hi, it’s me” played.

“Anyone else misbehave in their 20’s and early 30’s?” she captioned the social media upload. “Are you mortified?”

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♬ Anti-Hero – Taylor Swift

Perry’s book, out Nov. 1, describes his crush on Bertinelli as they filmed “Sydney” in 1990 while she was married to Eddie Van Halen.

The “Friends” star writes that the “Hot in Cleveland” alum’s marriage was “clearly … troubled.”

Perry recalls harboring “elaborate fantasies about her leaving Eddie Van Halen and living out the rest of her days” with him instead.

When the rocker once “enjoyed the fruits of the vine a little too hard” and “passed out not 10 feet away” from Perry and Bertinelli, the duo had “a long, elaborate make-out session,” according to the book.

The “17 Again” star remembers, “I told her I had thought about doing that for a long time, and she had said it right back to me.”

However, Bertinelli later “made no mention of what had happened,” which Perry writes left him “devastated.”

Bertinelli and Van Halen’s relationship ended in 2001, 10 years after welcoming son Wolfgang, now 31.

The “Kids Baking Championship” host went on to marry financial planner Tom Vitale in 2011, but they divorced in May.

Matthew Perry at "Late Show with David Letterman" 1997 **FILE PHOTOS**

In October 2020, Van Halen died at age 65. The guitarist was battling throat cancer.

Perry’s memoir covers A-list relationships of his own, from his decision to break up with Julia Roberts to his date with Cameron Diaz.

The “Fools Rush In” star, who is 18 months sober, also dives deep into his addiction struggles in the book.