Given couplink has a 3 turn limit, I'm more inclined to say it's linking to a new pokemon. I'll run a test with it tomorrow, though. --- Douglas Adams: "In the beginning the Universe was created. This has made a lot of people very angry and been widely regarded as a bad move."
From what I have seen, it is this. Couplink only goes down after I try to link with a pokemon and harmony flute boosts the link from battles. --- The Official Odin of the Shin Megami Tensei IV board. Me and polite have never been on close terms.