The 38-year-old star, who has Jayden James, nine, and Sean Preston, 10, with the 'Piece of Me' hitmaker, said the whole relationship was completely "different" than he imagined it would be.
"That was a whole different lifestyle than I ever imagined. I mean, just getting around from place to place and having 20 people follow you all day long - your whole life kind of being told through somebody else's eyes.
"Everybody wants to put their own spin on it. We like, were caught right in the midst of that whole thing. It was so crazy. I look back at it and it's like, at times it was so overwhelming," he said.