Many people has a fear of getting hurt in relationship or friendship, so they try to avoid those people whom they want to be with. Also many people don't has the guts to work for their dreams because of the fear of losing. But I think its not how everything ends, the more important thing is the moments we live with those things. Maybe it will end in a negative way but the good things will be always with us. Not doing what we want to do because you are scared of how it ends is same like "you don't wanna sleep because you don't like to wake up".