To say it in one word love is commitment. It is not a feeling it is a commitment/a promise unto death to be in a relationship, to live through the ups and downs, to hang on to each other, It is about understanding, communicating, expressing, forgiving and even repenting for wrong done in the relationship. No one is perfect, to expect perfection from the other is to expect your partner to be God. Love is a perfect balance of all things that go into a relationship. when one of those things for eg. understanding or communication goes haywire, the relationship is in shambles. To keep the balance is the real essence of relationship. Love helps you to turn a blind eye to the flaws of the other while being ready to see his or her good qualities. Love grows and ages like fine wine.. when it does not it is mere attraction or lust.