>>21797074
I really didn't need to read through the intermission parts.. Depressing as fuck.
The girl's an alien who's lost in space with her family from a young age, end up at the guy's house when he's a kid, grows up with him. Later when they start dating it becomes an international scandal and a terrorist blows himself up to try and kill both of them. Girl saves guy by sacrificing her life. Her family goes back to space, guy goes to war because he's got no other reason to live, presumably ends up dying in a jungle while murmuring the girl's name, hallucinating that the alien family members were saying "come join us, come join us" to him tearfully. There's a few other cool things in there too, like when the dad of the alien family modifies the guy's hobby bike and removes the engine, making it into an anti-grav bike.