Kaley Cuoco's engagement began with a fight

Tennis player Ryan Sweeting likes to keep fiancèe Kaley Cuoco on her toes.

The "Big Bang Theory" star tells "Entertainment Tonight" that before Sweeting proposed to her, he found an interesting way to keep her guessing.

"He actually started a little fight with me and threw me off," Cuoco said of her recent engagement.

"I was like, 'Oh my God, things aren't great,' and then he surprised me at the end of the night. He had faith enough to know that I wouldn't really think something that bad was going on, and so he popped the ring out, and it was amazing."

According to reports, Cuoco and Sweeting dated for around three months before deciding to get hitched.

"It's been magic," Cuoco said of their whirlwind relationship. "We grew up with the same people, we just never met, so I kind of feel like I've known him my whole life. I know it seems a little crazy on paper, but it's what works for us."

Prior to making it official with Sweeting, Cuoco had a brief romance with "Man of Steel" star Henry Cavill this summer.