Half of Americans report loneliness of some sort. The research varies but roughly 40-50% of adults claim to be lonely, +50% claim no one really knows them, and our young adults 18-22 claim the highest rates of loneliness. Various reports show people, married or single, young or old, having no close friends. Instead of discussing what may or may not be the cause, let's discuss a great medicine for loneliness.
Two are better than one, because they have a good reward for their toil. For if they fall, one will lift up his fellow; but woe to him who is alone when he falls and has not another to lift him up. -Ecclesiastes 4:9-10
Friendship was a natural bond that formed the Western World. Mutual affection, willing of the good, and a sense of reciprocity that helped for Just friendships were frequently manifested through good deeds between friends. The picture above is a portion of Raphael's famous School of Athens depicting an elderly Plato and younger Aristotle walking and talking as friends.
Aristotle's Nicomachean Ethics (Book VIII) lays out three kinds of Friendships: