Which Actor is Bummed Over Losing Jessica Biel?

Which gorgeous star is having some regrets about the Jessica Biel/Justin Timberlake union?

It’s “Chasing Mavericks” hottie, Gerard Butler!

In 2011, while Biel was split from Timberlake, Butler and his “Playing for Keeps” co-star had a little bit of a summer fling.

However rumor has it Biel was looking for more than just a good time from the Scottish actor, and the 42-year-old just wasn’t ready to settle down.

"Gerard doesn't have many regrets but not treating Jessica with the respect she deserved while they dated is one of them. He genuinely believes she was the one that got away,” says a source close to the actor.

“Jessica liked Gerard a lot, she was into his boyish nature, but she wanted something more serious. She was ready to settle down. That's why after… their relationship soon fizzled out."

After ending it with Butler, Timberlake was quick to get back in the picture. He proposed to his lady shortly after.

While Butler has said nothing but nice things about the couple, the source continued that Biel will forever be the one that haunts him.

“He just wasn’t man enough to admit the feelings he had for her at the time.”

"I'm very excited for her," Butler said, regarding the wedding. “I know Justin… great guy, and she’s an exceptional woman. I’m very happy for her.”

"She's amazing," he had said on working with Biel. "She's such a joy to work with. You have to be patient to work with me and she's patient. Her performance was incredible. Her comedy, her humanity, her warmth and just her talent. She's a great girl."

Not patient enough, apparently.