"Each relationship and every single encounter can be a vehicle for meaningful spiritual connection, through the transformative magic of Bodhicitta. Buddha taught that this Bodhicitta or spiritual love has four active arms, known as the Four Boundless Heartitudes, and four expressive faces known as the Four Forms of Compassion in action. This is how we love, Buddha-style: impartial to all, free from excessive attachment or false hope and expectation; accepting, tolerant, and forgiving. Buddhist nonattachment doesn't imply complacence or indifference, or not having committed relationships or being passionately engaged with society, but rather has to do with our effort to defy change and resist the fact of impermanence and our mortality. By holding on to that which in any case is forever slipping through our fingers, we just get rope burn.
"Buddhist love is based on recognizing our fundamental interconnectedness and knowing that all beings are like ourselves in wanting and needing happiness, safety, fulfillment, and not wanting suffering and misery. The Dalai Lama says, "If you want to be wisely selfish, care for others." All the happiness and virtue in this world comes from selflessness and generosity, all the sorrow from egotism, selfishness, and greed."
Lama Surya Das, "A Buddhist Valentine"