The 35-year-old X-Factor judge has had a horrible past few months after splitting from Yvonne, whom he married for 14 years, reported Daily Telegraph.
"It's been a horrible past few months. This has been by far the hardest thing I have ever had to contend with in my life, the hardest thing Yvonne and I have had to do together.
"The decision was horrible ... I've lost a bit of weight. I run a lot and basically I haven't been eating - just drinking all the time. It's not healthy, really," he said.
Keating, 35, said he's not ready to start dating again.
"I am very much single now but can't even contemplate dating again - that is the last thing on my mind, even the thought of it terrifies me. I'm just not interested."
