Before the train and after.

I don't know what to make out of this story. This story gave me a lot of questions and barely any answers. Questions that were on my mine like, was what made Jeremy decide it was a good idea to stick his hand out while a moving train is coming? Something that also bothered me was the narrator of the story, and their relationship with Paul. It makes me wonder if the narrator even loved Jeremy in the first place, because she seems worried about him yet still cheats on him with his best friend. Other than that I'm pretty indefinite with how the story ended.