Lizzy and Bricks had what I see as an almost mother-son relationship: even though Bricks was protecting her, she was giving him moral support and counseling... Okay, maybe switch that to therapist-client relationship. We had that scene wherein Bricks comes back with Burt's blood on his shirt, and Lizzy says to him something along the lines of, "Did you hurt someone again? I thought you were done with that sort of thing." The tone of their dialogue bespeaks close friendship and his confiding in her, but there was never really a hint of romance.