The theme seemed to be more along the lines of the main male's love interest (although that's mostly because FFVI is the only one with a female main character outside of XIII, and Lightning doesn't have a love interest), so I went with Locke there. I mean, Anagram uses Vaan as XII's lead, so I figured I could take some liberties!
But if you want to go the other way around, you could use Locke.
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"Stay with me until the end. Please."
"Not until the end. Always."