How does one define 'Love' ? According to the Oxford dictionary it is a very strong sense of affection.
Everyone is born with this innate want and need to be loved. When one is deprived of it from young, the person suffers from psychological problems , that most times hurt and harm others and themselves.
Love for another person or object is ego-based. It is also one of the main causes of attachment. When one 'loves' another deeply , that love then becomes totally dependent on that other person to bring him happiness.
I have nothing against Love, but i agree with Diamond Girl that Love is overrated . Love is one person's perception of another - hence the phrase " Love is blind ".
However Compassion is different. Compassion encompasses loving kindness, care, concern, generosity , empathy towards another , with no expectations or returns. Compassion is unconditional. Compassion is Divine Love in Action.
In order to expand our compassion, we need to bring into our lives the above mentioned virtues and emulate our Gurus, the highly attained Lamas and Enlightened Masters.