Im kidding

As for Cait's predictions... well if you want to argue he was predicting their wedding and didn't know Aerith would die, it would probably make the most sense that the previous prediction doesn't mean Aerith is the something Cloud will lose. It makes the most sense that way, I think. Because if it does mean Aerith, he probably wouldn't have seen a good future for them, it would have been, I dunno, blank or something.
Aerith: How compatible are Cloud and I?
Caith Sith:... OMG it's blank
... okay it's not that funny but that's... yeah where I'm coming from. Though TBH I was never one to really believe the stuffed cat. I always thought Cloud and Aerith had good chemistry ... I don't need a stuffed cat to tell me that.
EDIT:
also... 97% sure on the FFX Ultimania showing Tidus and Yuna as the official couple. I mean really, why wouldn't it? XD