In the first chapter, Sasuke dumps Naruto claiming he's looking for something more serious and that the relationship with Naruto was fun while it lasted or something to that effect. Later, Naruto is raising his son alone, and Sasuke hunts him down wanting to get back together since he realizes Naruto was the best thing he ever had, but Naruto won't let him in. He lives near Gaara who is a recluse who he asks to babysit his son while he sells his body to Gaara for research or something like that... his son is blind in one eye and all there houses come equipped with computerized personalities and I think Naruto's is Haku or Neji..
If anyone could point me in the right direction I would be beyond grateful