Since when was there no relationship between Zidane and Garnet?

Zidane and Garnet's relationship doesn't pan out enough. It's far too standoffish the majority of the game and doesn't really amount to anything until the very end. Zidane's head over heels for her, but she's too stubborn to really let her feelings for him be heard for the better portion of the game. I'd rank Tidus and Yuna's chemistry as being far superior, actually.

I loved Zidane and Garnet's chemistry, although I think Squall and Rinoa have the best chemistry in the recent games.

I don't find their appearances creepy, but CC is right about their relationship not really panning out over the course of the game. I didn't like how their feelings was left unresolved in the end. The ending made up for it imo.

indeed, the only consclusion only shown at the very ending. They even never confess each other after last boss just before ending scene rolls!
But I admit, for some reason i like them best of all FF i dunno why though.