Seifer and Squall are brothers

[Serapy]

By looking at the characters interactions one realize the following:

Edea and Seifer are Rinoa´s parents.
Squall and Rinoa are Zell´s parents.
Zell and Quistis are Selphie´s parents.
Selphie probably stays with Irvine.

Are you SERIOUS?

If you are, what evidence IS there?! Zell and Quistis show NO ROMANTIC INTEREST, not even once. And that's the only one I'm going to address right now. I mean, come on!

We may never know. I mean, they have never recognised each other until the mid-game. According to the game, the orphanage is the only event that's brought back to life. But what if there was something else, other than the orphanage? What if there was something else that the party has not yet recognised?

It doesn't seem quite logical that the Orphanage was the only memory to be given back to the party. There has to be something more, not just the orphanage.

SquareSoft didn't do that (adding more things to the game), I'd agrue that it's because of disk space... among other reasons, e.g. not enough time. So, even little hints within the game can be considered very very important.

This is like a dice game, either it's hit or miss; one little hint can be worthy or not, but that doesn't mean you should automatically demolish the possbilities of these little hints. Don't ever do that!