The thing is, there's no real hard evidence in-game for a Link/Zelda pairing, or any other pairing. One could argue that their relationship is strictly platonic; a sort "I help you, you help me" sort of deal. Certainly that's the position I've seen many people take.

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Fångad i elden, ingen väg ut
Hugg, slag och spe
De band en själ, min vargbroder...

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