If I were out on the battlefield of life I wouldn't want someone around me pretending to be my support when all they are really doing is trying to use me as a shield so they don't get hit.
My motto in life used to be 'Trust thy self'. When in time of danger, you are your best friend.
As a parent now, I obviously trust my family and kids more than I trust myself.
Relying on someone is really hard to me and that is why I can't say I have a true friend that would put him/herself in front of a bullet to save my skin when I need protection. Life became a huge battlefield due to a world full of greed and ignorance. Selfishness tends to close everyone into their nutshells they are so afraid to leave unless life demands it and when this demand has to do with themselves.
When the world turns into a more altruistic place, where people think about others and about their needs more often, there will be a way to make one or two true friends. But I still believe in mankind!