Whats your question?
Why is she bleeding? Well it depends where the blood is coming from, if its internal, I dont know to tell you the truth. If its external maybe you were too rough on her and she ripped or got cut. That can happen to guys too, like if they have too much sex, they can get bust, burns, or swollen. Do you have long fingernails? Maybe you scratched her? My boyfriends a cook, and he always comes home with f'ed up hands and one time he was playing with my belly button rings and his messed up fingernail got me and left me a cat scratch. Well hopefully shes not bleeding anymore. ;)