You were making coffee for them, and you put the coffee on the table until some potion fell on it, it was love potion, and you went back without you noticing, and you went back and grabbed it, and you put it on their table, and walked away, they grabbed their coffees and drank them, without them noticing the Love potion, and they got dizzy, and a few minutes later you went back to was the leftovers and walk away you noticed that someone is following you.