His Sister

i have a best friend and he is really happy and is loved by everyone around him especially his sister you see usually brothers and sisters fight all the time if you have one then you know what im talking about but his sister is paralized.... it happened to her that one and a million chance that someone would get hurt and it happened to his sister now he takes care of her and shes almost 21... her whole body is paralized and he just informed me that she doesnt have much longer he loves his sister more than he loves himself he is so wrapped up in helping her and he refuses to give up on... his sister