The Boyzone singer, whose marriage of 12 years broke down in May amid reports that he had cheated with a backing dancer, included a message to Yvonne in the liner of his upcoming release Duet, The Sun reports.
Ronan wrote: "You are the most incredible, inspirational woman I have ever met.
"For the mistakes I have made in my life, I am sorry. Guess you have to go there to come back. It was a dark place and you were the light to bring me back. I love you."
> Ronan and Yvonne Keating reconcile?