She broke my heart......?

I was with this girl for over 3 years and I thought it was a certainty we would be together forever. I thought she was different from all those other girls out there. But it turned out she is just like the rest of them. She found some other dude, she found a bunch of friends she would rather hang with. She just threw me to the side like a used toy. I am SOOO broken hearted over her. This is what she always says to me "I just want my own life right now. I don't want a relationship. I just want us to be friends for now." To me that means she isn't in love with me anymore. Girls, is that what that means? The worst part of it all is that I LIVE with her. AHHHH! Everyday is a struggle for me. Im depressed. I want to get over her but I can't. I don't want another girlfriend. She has really made me think that there ISN'T any girls out there who aren't sluts (sorry for the language im just really mad at her for doing this to me). I have given up hope. Am I wrong to think this???