Real love is not based on attachment, but on altruism. In this case, your compassion will remain as a humane response to suffering as long as beings continue to suffer.

Attachment leads to suffering.

He who is overly attached to his family members experiences fear and sorrow, for the root of all grief is attachment. Thus one should discard attachment to be happy.

At fifteen my heart was set on learning; at thirty I stood firm; at forty I had no more doubts; at fifty I knew the will of heaven; at sixty my ear was obedient; at seventy I could follow my heart's desire without overstepping the boundaries of what was right.

Pain can change you, but that doesn't mean it has to be a bad change. Take that pain and turn it into wisdom.

There is no denying that consideration of others is worthwhile and that our happiness is inextricably bound up with the happiness of others. There is no denying that if society suffers, we ourselves suffer, and the more our hearts and minds are afflicted with ill-will, the more miserable we become. We can reject religion, ideology, received wisdom, but we cannot escape the need for love and compassion.