
Originally Posted by
Ouch!
Spoilers, obviously, I vaguely remember hearing that some of the Japanese dialogue exchanged between Balthier and Ashe at the end of the game (specifically when the party learns that Balthier and Fran have stayed behind to stop Bahamut from crashing into Rabanastre) was a lot more explicit.
That said, I doubt that the camera pans to an annoyed Balthier in every scene in which Ashe is being courted by Al-Cid is unintentional. Watch the scenes on Mt. Bur-Omisace and (more importantly) Reddas's Mansion when Al-Cid is talking to Ashe. Balthier looks obviously annoyed (jealous?).
Throughout the story, Balthier and Ashe have quite a few heart-to-heart moments as well (the Phon Coast comes to mind). Also, the ring was the payment he took before the group set out for Mt. Bur-Omisace. It was Ashe's wedding ring from her marriage to Rassler.
Anyway, given how subtle the character development is in FFXII, I don't think it was made to be absolutely clear. Their relationship (or non-relationship, as it were) was not meant to be the main focus. If it had, there would have been clearer resolution.
I always did get the feeling that there was something between the two, but I never expected anything to come of it. The adherence to a set social structure is far too rigid throughout FFXII for such a thing to work. This isn't FFIX where everyone just turns a blind eye to the fact that the Queen is in love with a thief. The ending of FFXII make it clear that certain standards are maintained: Penelo and Vaan return to relative anonymity. Balthier and Fran continue their lives as outcast sky pirates with a price on their heads. Basch forsakes his own identity to assume that of his brother. Ashe becomes Queen and becomes estranged from the others. A relationship between the two would be inconsistent with the narrative.