Why do I want people to care so much?

I was molested by my stepbrother on and off for two years. He started doing it in November of 2008, right after I came back from my week and a half stay at a mental home. I never told my parents. They found out last year by going through my email. Everytime I tell someone this, that I was molested, they don’t react like I think they will. They usually just say something along the lines of “I know, but listen I’ve been through worse”. And I don’t know, but I just find that so hurtful. Seems like they don’t care. Why do I care about this so much?