My take on the ending (Spoilers...duh)

The main character's a loser...obviously. I mean, despite the unfortunate fact that he's a necrophiliac-something that's bound to keep you from getting very popular with anyone besides other necros-he loses his job and his girl in the middle of the story.And the worst thing about the job part is how hard it is for him to find dead bodies after that...so he takes to killing people.Feeling alone and with great remorse, as well as probably some contempt for society with its cruel ways helping to shape him into the monster he is(e.g. his father skinning the rabbit infront of him when he was a young boy)he does the most noble thing he can(hence the Jesus and crucifix imagery during his little day-dream in the meadow)and destroys himself...so happy to do the deed and be done with it all he ejaculates, spreading his seed all over his blood stained trousers instead of a womb, which would bring both another victim and factor to this cruel world, like himself.