You've got it backwards there. Here's the situation Fai's talking about:
A male Girafarig uses Attract on a Jynx (female.) Then the Girafarig uses Baton Pass to transfer, oh, Idunno, maybe an Agility or two, to a female Magmar. The Agility transfers, obviously, but does Jynx remain infatuated? This is plausible because an Ariados can use Spider Web on an enemy and then Baton Pass control of the Spider Web to a teammate, leaving the enemy unable to run or switch despite the fact that Ariados is no longer on the field.