A Fear of Rejection

Are you guys sure rejection is not fatal? It feels like I am dying when someone rejects me. No wait, I would like to die, but I always survive, humiliated and scarred. If I circle a person, and they don't circle me back, I've been rejected. It has happend to me. It's embarassing in a way, how I try to reach out to them and they say no... How you open up on such a personal place,where they can read everything I've written etc, and they 'reject' you, it's just sad.