This song talks about a relationship that ended very bad, for Bruno's (or the man's) fault.
Because he didn't pay attention to the girl, he ignored her, and given that she was a very strong woman, she decided to break up and now she has a new man.
In the second part, Bruno doesn't talk about why they broke up, but he hopes that he buys her flowers, that he holds her hand, that he takes her to parties to dance. He hopes that her new man does all the things he didn't do when he was his man, because she deserves it.