Jessica Simpson upset, that Tony Romo still talks to ex-girlfriend Carrie Underwood.

“Jessica can be so insecure when she is with Tony, and it only gets worse when he is around women,” said the friend.

“(Jessica) is really upset that (Tony’s) still communicating with Carrie,” the source said. In fact, the insider revealed that the Dallas Cowboy quarterback frequently contacts the country-music star via e-mail and text messages even though he knows it bothers Jess. “She had specifically asked Tony to stop,” the insider added.

“Jessica has to tone down how jealous she gets over things like this,” the friend adds. “It took a toll on their relationship.”

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