“John would agree it was mutual that we sort of fell in love with each other," Alley said of her Look Who's Talking co-star.
Alley called not consummating her relationship with the 64-year-old actor "one of the hardest things" she's ever done, but cited her then-marriage to Parker Stevenson as her reason for abstaining.
“I will say it’s one of the hardest things I’ve ever done, the hardest decision I’ve ever made because I was madly in love with him — we were fun and funny together," she said. “... It wasn’t a sexual relationship because I’m not going to cheat on my husband. But, you know, I think there are things that are way worse than sexual relationships, than cheating on someone that way. I consider what I did even worse because I actually let myself fall in love with him and stay in love with him for a long time.”
However, Alley emphatically denied the rumors that she and Travolta didn't have a physical relationship because of his sexuality. “No I don’t [think he's gay]," she added. "I mean, I know him pretty well — and I know the love.”
Alley and Stevenson were married from 1983-1997 while Travolta wed Kelly Preston in 1991. Even after Preston and Travolta tied the knot, Alley said she continued to flirt with the Grease star.
“Kelly came up to me — and they were married then — and she said, ‘Erm, why are you flirting with my husband?’" she recalled. “And that was sort of when I had to make a decision and that was pretty much the end of that.”
In the end, Alley thinks everything turned as it should and is happy that the three of them have "remained best friends all these years."
“John and I would have devoured each other because John and I are so alike. It would be like two blazing stars that just fizzled out," she said. "John goes to bed at like four or five in the morning and wakes up at three in the afternoon. I go to bed at nine o’clock at night and wake up at five in the morning. We basically would have not have seen each other. It would have been a disaster."
Travolta wasn't the only fellow actor Alley brought up in her interview. She also discussed her North and South co-star, Patrick Swayze, and her Cheers co-star, Woody Harrelson.
“He was married and I was married, it was so hard to resist him,” she admitted of Swayze. “So it was like fighting that temptation because I really liked his wife. It’s those kind of things that people would probably get divorces over and go off together.”
Alley also shared a story of when she ran into the late actor and his wife, Lisa Niemi. “I was seated next to him and his wife at this banquet. I was so proud because I wasn’t fighting off the last temptation of Christ, right? But after about two hours of sitting there, I was like ‘I’m going to leave’ because then I was single and he was still married, it just wasn’t good," she recollected. “His wife asked me to speak at his funeral service and I was really happy to because he’s an amazing wonderful person – he had more energy than any person in the universe.”
As for Harrelson, Alley claimed that her Cheers co-star frequently propositioned her.
“He would knock on my bedroom door and go, ‘So you want to come out and have sex with me?’ and I’d go ‘No,’" she said. “He’s kidding, right, but if I came out and said yes I would have been having sex with him.”
During an interview with ET, Alley revealed what it would take for her to agree to a Cheers reunion. Check out her list of demands: