Valerie Bertinelli taped an interview with Oprah Winfrey, set to air Monday, February 25 — and she’s not pulling any punches.

Valerie Bertinelli sits down with Oprah to discuss her new book, Losing It: And Gaining My Life Back One Pound at a Time, and offers up plenty of dirt about ex-husband Eddie Van Halen.

Turns out both Valerie Bertinelli and Eddie Van Halen were none-too-faithful to one another.

“I cheated,” Valerie Bertinelli told Oprah. “He claims to this day that I cheated first, but I don’t know. I don’t know about the timing.”