Lisa Rinna as Billie Reed, Patrick Muldoon as Austin Reed

Credit: Alice S. Hall/NBCU Photo Bank/NBCUniversal via Getty

Lisa Rinna is spilling the tea — her own!

On this week's episode of PEOPLE in the 90s, co-hosted by Andrea Lavinthal and Jason Sheeler, the Real Housewives of Beverly Hillsstar reminisced on her soap opera days — and revealed she had a fling with her Days of Our Livescostar Patrick Muldoon.