Re: ADDITIONAL SPOILERS LIKELY IN THIS THREAD
And Guy just has so much patience and understanding and general awesomeness! When Luke is at his most unmanageable, Guy's the one who says things like, "You'll figure it out," and "I belieeeeeve in you," and smooshy things like that. There was a moment roughly halfway through the game where I said to myself, "Okay. Luke and Tear are going to end up together, because he is the RPG hero and she is the RPG heroine and this isn't FFXII. But if I didn't know that, I'd never believe it." So I'm glad they end things in a way that lets you work around Luke/Tear if you're so inclined.