Of course he'd seen Rukia sleeping on the couch and had taken pains not to wake her as he prepared for his journey. He'd come to like her well enough over the last few days, she was quiet and polite herself if a little... interesting at times. Under different circumstances he might have liked to stay but that simply was not something he could do.

He was just debating what to do about her when she started to wake up. It didn't feel right to leave without a goodbye of some sort but should he wake her before he departed, or leave a letter...? Either way, it seemed that choice had already been made for him.

He stopped by the door when he hears her speak up, letting out a quiet sigh.

"I cannot remain here." He said quietly, half-turning his head back toward her. "I must seek out a way to return to my home."