Matthew Perry and Jennifer Aniston played close companions on the hit sitcom Friends for a decade.
Now, in his recent tell-all memoir, Perry has revealed that - at one point during his time on the show - he hoped the two stars might become more than just pals.
In the new book - titled Friends, Lovers, and the Big Terrible Thing - the star reveals that he liked his co-star so much that he found it difficult for them to work together.
The now-53-year-old Perry explained that he fancied Aniston from the moment he met her when they were both first cast on the show in 1994.
"I was immediately taken by her (how could I not be?) and liked her, and I got the sense she was intrigued, too – maybe it was going to be something," he wrote, per Digital Spy.
The 17 Again star went on to recall a time when he let on how much Aniston meant to him, writing: "Back then I got two jobs in one day – one was Haywire, an America's Funniest Home Videos-type show and the other was a sitcom. So I called Jennifer and I said, 'You're the first person I wanted to tell this to!'"
"Looking back, it was clear that this made her think I liked her too much or in the wrong kind of way… and I only compounded the error by then asking her out," he added.
Unfortunately for Perry, Aniston turned him down but said she'd love to be friends. This didn't make things easier for The Odd Couple star.
"Fairly early in the making of Friends I realized that I was still crushing badly on Jennifer Aniston," he admitted in his memoir, adding: "Our hellos and goodbyes became awkward. And then I'd ask myself, 'How long can I look at her? Is three seconds too long?'"
Despite going through an awkward phase, Perry went on to explain that he got over his feelings for Aniston when the success of the show catapulted them to superstardom.
He added that he also crushed on his other co-stars Lisa Kudrow and Courtney Cox during the beloved sitcom's ten-year run.
Meanwhile, Perry wasn't the only one on the set of Friends to harbor romantic feelings. In the reunion special last year, Aniston and David Schwimmer admitted they both fancied each other at one point while working on the show.