I used to get frustrated over Seto and the obvious flags. Now I just enjoy it for what it is. The dude is slowly (ever so slowly) getting his balls to drop and finally one day he will be a real boy and ask Anjo out properly. At least we know she most likely isn't going anywhere and enjoys his company. That's good enough for me.
Because lets face it. Once he finally crosses the finish line - the gigs up and this Manga will end.