Jessica Simpson And Tony Romo Headed For Splitsville?!

We smell something fishy between Jessica Simpson and Tono Romo, and it isn't Jessica's new diet!

Sources reveal exclusively to PerezHilton.com that the couple are on the verge of a break-up!

The failed country singer cancelled her birthday party over the weekend at the last minute after a fight with Romo, we're told.

And although Tony was in El Lay, he stayed at the Sunset Marquis instead of Simpson's house!

If that doesn't sound bad enough, after the lovers' quarrel, Jessica was spotted in Malibu with her parents this weekend without the football star, her boyfriend of the last couple years.

And it was her birthday!!!!

After enough rumbling, eventually there's an earthquake!!!!

[Image via WENN.]