Learn how to overcome depression, love. love without expecting love in return. The reason you love without expecting love back is that you then are not disappointed if you don't get love back, but you are pleasantly surprised when you do. Friends are the (one of the) greatest gift God has given us (Christ is the greatest gift and guess what, He is also a friend!!). Love your friends. I have several good friends and I love them dearly. God blesses my heart when I bless them and the more they smile, the better I feel, the better I am in general, and the more joy I have.
So even if your friends are not perfect, love them anyway, they love you and your not perfect. Don't expect anything more from your friends that you would want them expecting of you as well.