Jessica Simpson: 'Tony Romo's my Perfect Guy'

Jessica Simpson is happier than ever with beau Tony Romo.

"I just told him today, 'You're the love of my life,' " Simpson tells People magazine in its latest issue. "I don't really ever say that to anybody."

Simpson -- who describes the Dallas Cowboys quarterback as her "perfect guy" -- also co-wrote a song for her man, You're My Sunday, and changed her cell phone number and e-mail address to cut off any potential communication from her exes.

"I don't want anybody that's been in my life [before] in my life anymore," she says. "I don't even want them to have any way of contacting me."

Although Romo, also 28, didn't do the same, Jessica -- who recently blasted claims by Tony's ex Carrie Underwood that they were still in touch -- insists, "I'm not a jealous girlfriend."

Jessica recently revealed that there are tracks on her debut country album Do You Know which refer to "secret lovers".

She said, "There are guys that people don't know that I've been in love with. I've had secret lovers."