You are looking for an answer on the Internet or in books. But the answer is elusive.
Sleepless nights when our partner is absent, an overwhelming sense of despair when a relationship ends, and an agonizing feeling of heartbreak when a relationship ends.
Sometimes love can hurt. When you are in love, you can feel like the happiest person in the world.
Love also hurts when we learn something about the other person, which will result in a loss for us.