Actually interesting lyrics from Robbie Williams! nobody gives him much credit but every once in a while he did a thoughful song. These lines talk about wanting something you can't have anymore. When you wish you had done things differently to have a certain person in your life still, but things change and maybe you don't talk anymore, time passes by and you become different people who can't seem to think what to say to one another. Become estranged. And it's ironic because he talks about no regrets and still starts the song with deep regrets.