If Justin proposed, I would say no!

Cameron Diaz says she doesn't want to marry Justin Timberlake, because she's commitment-phobic. Catch it on Ellen today.

"When Justin was on the show I asked him if you were going to get married," Ellen says.

"I saw that," Diaz responds. "You know the answer to that, Ellen. I'm a commitment-phobe. Don't want to do it."

"I know," DeGeneres says, "but it's been almost four years now." Sure sounds like someone that can't do the commitment thing.

"Well, we're kind of like married, isn't it?" counters Diaz. You just said you're a commitment-phobe?!

"Yeah, kind of," DeGeneres says, "without the tax benefits." Here, let me translate, Justin does not want to get married!

Yeah, yeah...it's all about the flowers