The two actors dated during the sitcom’s early seasons in the late 2000s.

Kaley CuocoandJohnny Galeckiare together again for an ad.

P.S., I will never claim that anything is great unless I truly believe it to be.

Johnny Galecki and Kaley Cuoco attend The 23rd Annual Critics' Choice Awards at Barker Hangar on January 11, 2018 in Santa Monica, California.

Kevin Mazur/WireImage

Give it a try!"

“Those are my games!”

“Oh wow, that is fun, you’re right.

THE BIG BANG THEORY, Kaley Cuoco, ‘The Hamburger Postulate’, (Season 1, ep. 105, aired Oct. 22, 2007)

We don’t need these games,” she says.

“Don’t need these!”

“Is that an overreaction?”

Jim Parsons

“Maybe,” Galecki responds.

“But this game is awesome.”

“We were both dating people at the time, but I only had eyes for Johnny.

Kaley Cuoco and Johnny Galecki in a ‘Royal Kingdom’

Kaley Cuoco and Johnny Galecki in a ‘Royal Kingdom’ .Royal Kingdom/Instagram

Galecki had no idea about his costar’s attraction, though.

“I had zero idea of any sort of crush before Kaley and I began dating.”

“I think we fell a little in love in that elevator shaft,” Cuoco recalled.

“We felt something, yeah,” Galecki agreed.

“I think that was a massive turning point [in our relationship].

The former costars still remain on good terms despite ending their relationship around 2010.

“We adore each other.”

Galecki agreed: “We continue to love one another, just in other ways.”