The former Boyzone star, who has been dating Storm Uechtritz for a year, has told Australia's TV Weekly magazine the current season of the talent show could be his last.
The 36 year old says, "I make massive sacrifices with my career. Every year I consider if I can really do it again. The show is a big commitment."
And he admits his relationship suffers the most: "We are both so busy. We barely get to see each other. The only time is when I'm on set or when she travels with me while I'm working."
Keating is currently judging the show alongside Dannii Minogue, Natalie Bassingthwaighte and LMFAO frontman Redfoo.