On "The Big Bang Theory," Galecki and Cuoco played neighbors turned lovers from 2007 to 2017, but you may not realize the actors also dated in secret for two years. They got together soon after meeting on the show but decided to end their romance in 2009.
Cuoco first opened up about their relationship during a September 2010 interview with "CBS Watch!" and had nothing but good things to say about it. "It was such a huge part of my life and no one knew about it," she said. "This is the first time I've ever talked about it, ever. It was a wonderful relationship, but we never spoke a word about it and never went anywhere together." Later, she added, "We knew we weren't destined to be together. We accepted it and said, 'Look, if we ever break up, we will be professional.' I'm so lucky it was a mutual ending and that we don't hate each other."
Galecki expressed a similar sentiment during his own interview with "CBS Watch!" in December 2013, saying he and Cuoco remained close, per Us Weekly. "We're dear friends, still. Kaley's not just an ex — she's a part of my life," he said. "I just don't like to speak about it. And not because I'm trying to be enigmatic; I just worry that it will conflict with people's acceptance of Leonard and Penny. I get the curiosity, but I don't want to distract from the story."
In 2022, Cuoco revealed she'd developed a crush on Galecki immediately. "I was so not even hiding it," she told Vanity Fair. "He has such swagger."
