Peter, 30, broke up with Hannah Ann in late January 2020, and the pilot just confirmed on Thursday that he had slept with Brown in February 2020 while The Bachelor's 24th season was still airing on ABC.
Peter went on to star onThe Bachelor, and Brown made an appearance more than once. While hosting a "sex stories" group date, Brown and Peter had an emotional heart-to-heart that almost resulted in Peter quitting the show in order to pursue a relationship with his ex.
Brown, however, wasn't all in, and so Peter decided to continue with his televised journey to find love.
Hannah Ann said on the "Bachelor Happy Hour" podcast last year that Peter had asked for her blessing -- when they were still engaged -- to reach out to Brown because he "needed closure" in early January 2020.
Hannah Ann therefore reportedly said she "called" how this would happen with Brown and hacd "warned" everyone at The Bachelor: After the Final Rose in March 2020, when Peter was shown reconciling with his runner-up Madison Prewett. (Peter and Madison, however, called it quits only two days after the special aired on ABC).
"I should have really picked up on the first red flag that you gave to me, was when you wanted to reach out to Hannah Brown to find closure with her," Hannah Ann told Peter on ATFR.
"So really, looking back at it, our engagement involved three women. Me, you still being in love with Madison and proposing to me and you needing closure with Hannah Brown. That's three women involved in our engagement that I was completely blindsided to... Word of advice, if you want to be with a woman, you need to become a real man."
Once Peter had Hannah Ann, Brown and Madison in his rearview mirror, he reunited with his fifth-placeThe Bachelor finisher Kelley Flanagan and the pair quarantined together in Chicago beginning in March 2020.
What supposedly started off as a friendship quickly turned in a romantic direction and then Peter and Kelley dated -- on and off -- until they announced their split in February 2021.
Peter said in April that he's "super happy" for Brown and her current relationship with boyfriend Adam Woolard.
"I see she's in an awesome relationship... and so that just makes me super happy," Peter shared. "And she's an amazing person. And I've got nothing but great things to say about her."
For Peter's part, he reportedly joined a dating app recently and is interested in getting to know a woman outside of Bachelor Nation. However, the pilot hasn't ruled out a future appearance on Bachelor in Paradise if he's still looking for love.
Peter also said on the Thursday episode of his "Bachelors in the City" podcast that he's not upset about Brown spilling the tea in her new memoir and he agrees that their connection had fizzled by the time of their February 2020 hookup.