I think its important to have closure in any relationship that ends - from a romantic relationship to a friendship. You should always have a sense of clarity at the end and know why it began and why it ended. You need that in your life to move cleanly into your next phase.
By: Jennifer Aniston
The strong bond of friendship is not always a balanced equation; friendship is not always about giving and taking in equal shares. Instead, friendship is grounded in a feeling that you know exactly who will be there for you when you need something, no matter what or when.
By: Simon Sinek
What men have called friendship is only a social arrangement, a mutual adjustment of interests, an interchange of services given and received; it is, in sum, simply a business from which those involved propose to derive a steady profit for their own self-love.