Pink: Ruled by Venus. Used for love attraction and healing; devotion. It is subtle but sexual. Good for renewal and stirring passions. Very much like red in this respect as it can with devotional love and soulmating and twin mating. For both the red and pink candles you can invoke the any of the Goddesses of love you wish to work with.
Of course common sense says, in general DO NOT LEAVE A CANDLE BURNING UNATTENDED IN AN UNSAFE MANNER. SUGGESTION PLACE CANDLE IN A BOWL OF WATER OR SNUFF OUT WHEN LEAVING YOUR HOME.