“To ease another's heartache is to forget one's own.”
There is one sure way to kill love - measure. Like this lyrics: “Too much love will kill you....”
Loving someone because he thinks is right, because it is "your turn", or simply what you get is not love at all. It's manipulation.
Keep a record of any type can be annoying, but with love, can be deadly, especially to a relationship. While most love to give, the more you have, do yourself a favor and love in abundance. And be sure to include those who are not able to return. Give it a secret. Volunteer. Pamper your spouse or friend without expectations of being returned the favor. These acts of love will benefit not only you but all around you.
Remember: Don't just lend a hand; give your heart.