Safety? What do I mean by that?

(POV Estrange)

I threw a dark look to Tyrone. I was suddenly bloodthirsty, but not for just anyone! I yelled and missed, by half a second, my chance to jump over the railing of the balcony to go find Marcus. Tyrone's hand grabbed my shoulder, even before the thought really took shape in my head. My bones cracked and I found myself on the ground after falling face down off the table. Tyrone didn't mean to hurt me; he wanted to stop me just for one second from committing an act that I would regret later. No sooner had I hit the floor I jumped up, agile on my feet. I turned to Tyrone, stepping back to give me more space. He put his hands on my shoulders, but did not approach closer. His eyes scanned my face, and he wrinkled his nose. I breathed, deeply and slowly.

Everything happened so fast, it was only the noise that alerted Alma and Vera. They saw only scattered pieces - Tyrone and I were talking at other side of the terrace.