Not Happy Anymore...

Alexis
I'm so fed up with my bf.. We're currently living together but things aren't like they used to be.. We always fight and there's always something he's hiding from me or avoided telling me that I only hear about when I find out for myself. Our sex life has deminished and I find myself wanting a more loving side to be there for me. When I'm stressed out, he just adds on and argues with everything I say like a child. Our lease has both of our names on it so I can't just leave but I don't want to be with him anymore. He gets crazy sometimes (and violent I might add). He doesn't make me feel good about myself but so much worse.. How can I break away?.. What should I do? I don't want to waste any more of my time..