Question about after you beat Ixion

Hey hey hey I have a question:

***Possible Spoilers***
After you beat Dark Ixion in Djose and Yuna is knocked into the hole, who was talking to her while she was floating {getting to the farplane}? It sounded like Shuyin but after you re board the airship it shows ???? and Tidus’ figure. I’m confused because it really sounds like Shuyin, THEN after you hear the voice you meet Shuyin. I just don’t get it!
Anyone know who it is?

You’re going to figure this all out eventually, while playing the game. o_o So why don’t you just play it?
I really don’t want to spoil the story for you.

*possible spoiler*

Well i thought it was tidus at first…because if you listen closely to tidus’ voice(of him telling the story in 10) its identicle to that…but it was shuyin’s….in the airship you oringinaly have a bit saying ‘????’ and you see SHUYIN’s figure and a blank part saying ‘-‘….after you come back on the airship the ‘????’ with shuyin’s figure says ‘shuyin'(she knows who it is now)and the space with the ‘-‘ goes to ???? with tidus’ figure…..a little confusing….but i think thats what happens…..

I’ve beaten the game 4 times already. -.-

ive only gone though once(90% on my fist try!) and am going though it again…..i really want to see the perfect ending!!

no-one tell me! i want to see it…not read it…

is it true that there are 2 secret endings???(as well as the 3 normal ones)