The title caught my attention. "Marly's Ghost? Sounds like a reference to A Christmas Carol." It surely is. Marly's Ghost, by David Levithan, is A Christmas Carol reimagined for Valentine's Day. Sometimes directly from the original text, and sometimes morphed into modern language patterns, this poignant story tells of a heartbroken teen rediscovering the meaning of love on a special Valentine Eve.
I can't say it was the best story adaptation I ever read, but it was a fresh and interesting take on a story that's been done many times around the Christmas holiday. At times the classic writing style and the modernizations seemed to clash. It's worth checking out if you like the original tale or if you love Valentine's Day. Or hate Valentine's Day. Have strong feelings about Valentine's Day, either way.