Although it was rumored that Tony Romo dumped Jessica Simpson because he found texts from ex-boyfriend John Mayer on her phone, it looks like country music star Kenny Chesney may have actually driven them a part. According to Star Magazine

Jessica was openly flirting with Kenny earlier this month during a summer getaway — and [that] shameless flirtfest that proved to be the last straw for Tony Romo.

“She was giving him all her attention, and they seemed very intimate,” an eyewitness [says of] Jessica and Kenny’s cabana chat. “They were sitting so close, their heads were together.”

Tony “looked real jealous that she was talking to Kenny,” says a source. He angrily confronted his girlfriend… [and then] stormed off the beach.

For the last ten years, Kenny Chesney has been under the misguided impression you won’t figure out he’s bald as a fucking badger as long as he doesn’t take his hat off. He just found the only person dumb enough to actually believe it.

Jessica looking like a crazy homeless woman last week:

PHOTO SOURCE: Bauer-Griffin, Pacific Coast News