"Nobody knows anything outside of me and Catherine and the people who are closest to us," Lowe toldPeople after Monday night's Dancing with the Stars performance show, calling the alleged rumors "so ridiculous."
Added The Bachelor star, "Typically, we don't read [tabloid reports], but if we're checking out at the grocery store, we'll see them and we'll flip through and laugh. It's all nonsense. It's all fictional."
In fact, Lowe insisted he and Giudici are "happy and could not be better."