American Idol sweetheart, Carrie Underwood, took a stab at Jessica Simpson by telling Allure magazine that her ex Tony Romo (who now dates Simpson) still calls her. “The phone will ring and it’ll be him, and I’ll maybe not answer,” she said, raising more than a few eyebrows–including those of Simpson, who took her own stab at the country singer. “Tony and I both laughed at that,” Simpson told a radio station on Wednesday. “We got a chuckle out of it.” How is Jessica so sure her man isn’t calling his ex? “I looked at his call log,” she admitted, breaking girl rule number 2, 6 and 14. Oh, Jessica, did you really just admit to that?