Why are we separated?(CielxElizabeth)

"Ciel, what are you talking about?" I stared at him as I looked at his lips slowly moving. "I....I'm sorry." He looked down as he was standing infront of me, giving me a painful smile. "What...What is it?!" I begged on his knees as tears were streaming down on my young and childish face. My heart was thumping so fast...