Nick Lachey has given his blessing to ex Jessica Simpson and her boyfriend Tony Romo.

"I wish her nothing but happiness," Lachey says in the latest issue of Us Weekly, on newsstands Wednesday. "If she's found that... good for her."

Amid talk that Simpson may be returning to the small screen with a CMT special, Lachey understands her motives.

"I did a show a show around the making of my last record," Lachey told Us. "It was kind of a documentary that I did with MTV about making a record... that is an idea that I had and I thought it was a good one, so I can certainly see where she’s coming from with that."

But Lachey has ruled out a return to the reality genre that brought him and Simpson notoriety with MTV's Newlyweds.

"Reality TV is not on my radar," he said. "You learn lessons in life, and then you have a responsibility to yourself to learn from those lessons."

When asked if he would consider a reality series with girlfriend Vanessa Minnillo, Lachey responded, "No, no, no, no. Never. Never."

Lachey, 34, and Minnillo, 27, have been dating for a year and a half.