I figered out what you do with the love potion.
all you do is click on it than you connect with another adult tamagotchi.(you have to choose present and be an adult.). than 1 of the tamagotchi will go the others house than they will kiss and than just like that they will fall in love.
all you do is click on it than you connect with another adult tamagotchi.(you have to choose present and be an adult.). than 1 of the tamagotchi will go the others house than they will kiss and than just like that they will fall in love.