Infatuation, also known as Attracted, is a Status Effect without a symbol and will wear off after an amount of turns.
A Pokémon will be Infatuated 50% of the time. This lasts until one of the Pokémon is either recalled or fainted. This only works when the first Pokémon uses it on a Pokémon of the opposite gender.
Mystery Dungeon series
Infatuation makes you unable to attack for five to six turns.
Attract - Infatuates upon contact.
Destiny Knot - Causes the opponent to be Infatuated when you are Infatuated.
Cures, Immunity, and Prevention
Genderless Pokémon are unaffected by Infatuation.