He was shocked and a little angry about her answer. He felt offended that she couldn't find it in herself to trust him and that hurt more than anything else. Sesshomaru wanted to turn away and run but he had a feeling that running wouldn't help anything. So he stood at the door, anger seeping into his eyes, watching Kagome and trying to get her to understand. He had a feeling that if she said anything that he'd find even vaguely accusatory he'd snap and he was praying he wouldn't have to.
"You're a demon." Kagome explained trying to get him to see what she'd seen when his mother had told her the information about him finding mates. "You've been looking for someone for a while; I just don't want to be your convenient excuse."
It felt as though the ground had given out from underneath him, a feeling he'd only experienced once in his life, when he'd held Rin as a baby for the first time. And as he stood there in the entryway of her apartment, he wasn't really sure what to say.