Credit: Michael Buckner/Getty Images

Carrie Underwood isn't writing any sad songs about ex Tony Romo.

In fact, she assures Esquire magazine that her song "Cowboy Casanova" was most definitely not about the Dallas Cowboys quarterback.

"No, I would never immortalize a guy that did me wrong," the 26-year-old country star says. "I would never give him that much credit."

The American Idol alum dated Romo, 29, in 2007, but by October of that year, she seemed to have had enough.

"Point blank, he is about football. I don't know if it's that I'm not quite his type or whatever, but I don't think he's at the point in his life where he would be willing to sacrifice football," she said at the time. "He hated so much that people thought that he was paying more attention to me and that was causing him to not do well.''

Romo went on to date -- and dump -- Jessica Simpson, who did admit to penning a song, "Back in My Old Boots," about the athlete.