[nicepace]

I'm personally skeptical that the mystery man existed at all. Here's my theory. Christine found herself in her studio with her nephew recording an album, of all things. This was after she had made it plain that she had retired from music. She surprised everyone, including herself. She knew there would be a lot of questions to her why she felt driven to make these recordings. She didn't think interviewers would like "Because I'm a musician and it just happened," even though I personally think it's the truth. So, she concocted a story that she had had a failed romance and that is what inspired her to make the album. At least it's a story interviewers could believe and write about.

The 'new song' fits nicely into her "I shouldn't be doing this, but I can't help myself" category of love/relationship songs.