Considering the timeline and setting, it isn't really weird. But I don't like the ending tbh. It feels like the author just couldn't decide who to end Tidus with.
This sucks. Middle part of the story got dragged too much so I was expecting this story to be a slow burn. Wth happened with the ending? They crammed everything in the last chapter.
I saw 100+ chapters in the CN version, I hope someone pick this up.