Since the Sorting Hat has a mind of it's own, why can't the Maurader's Map? Or rather, why can't it have four minds? I'm terrible at explanations, look inside if you're curious.

Sirius wants to confess his feelings to the person he cares about. However, everyone keeps stealing his love potion and drinking it. Now there's a whole mess of people in love and no one knows who actually loves who. AU