I don't think it's literally about a book. I think the book is a metaphor for a person. Maybe he talks to her on the phone through another friend or something, and then meets her himself, only to realize it's the same person. He loves her, and he's imagining their future together. Maybe he's "running a race" meaning competing for her with some other guy - possibley the friend who he originally met her through. I know it's out there, but that's my idea.
I don't think it's literally about a book. I think the book is a metaphor for a person. Maybe he talks to her on the phone through another friend or something, and then meets her himself, only to realize it's the same person. He loves her, and he's imagining their future together. Maybe he's "running a race" meaning competing for her with some other guy - possibley the friend who he originally met her through. I know it's out there, but that's my idea.