I gave everything, and I have never asked for anything in return. I wasted time, money, and feelings on people who won't do the same. I drove thousands of miles, yet some won't even move an inch for me. As I trace the scars of abandon on my hands, trying so hard to pick up my shattered pieces, I am expected to pick up every single broken piece of their souls. Yet I am alone. I scim through my contacts, yet I can't find someone to talk to. I have "friends" . Yet I am alone. Alone broken and confused. 
Life is pain. Everyone care's for themselves. This is how the universe work's these are the laws that govern it. I feel you man, you have to accept it if you want to not be depressed all the time and enjoy life, cause you can't change how things work. People come and go...