Jon Gosselin tells Good Morning America anchor Chris Cuomo that he is not entirely sure his estranged wife Kate and her bodyguard, Steve Neild, haven't been having an affair behind his back.
"I speculate, but I don't know -- that's a general feel," Jon said. "You know, almost like when they were traveling together, I felt jealous. Here I'm Mr. Mom. And then there's some other guy traveling with my wife."
Kate has denied the accusations, saying Neild and his wife have earned her trust through their loyalty.
The 32-year-old reality TV dad said of Neild's constant presence at Kate's side: "Whether it's protection or not, it's all in -- it's in the back of my mind."
GMA aired a portion of its taped interview with Jon on Tuesday's GMA, but will air more of it Tuesday night in a Primetime: Family Secrets at 10/9c.
Jon & Kate Plus 8 airs Mondays at 9/8c on TLC.