The following is from
http://home.teleport.com/~awaken/chap3.htm
Another form of love is the friendship between people who know one another on a personal basis and on relatively equal terms. In such friendship is the unifying acceptance found in fraternal love, as well as some nurturing love. Because of the mutual understanding and respect between loving friends, independence and spiritual growth is readily promoted. Yet this friendship can seem paradoxical and full of difficulties, as the following quotes indicate:
"The rule of friendship means there should be mutual sympathy between them, each supplying what the other lacks and trying to benefit the other, always using friendly and sincere words."
~Buddha
"The more we love our friends, the less we flatter them; it is by excusing nothing that pure love shows itself." ~Moliere