Mei didn't trust Alistair. It was just that simple, when he had volunteered she placed a small enchantment circle around herself for protection. Despite this she was still a bit on edge the whole time. She was judging him based on his alignment, it wasn't something she wanted to be doing but his predecessors had quite the reputation, as did her own. Mei was also fairly certain that no matter how neutral Alistair appeared or tried to be, he had some of the same feelings. The battle between light and dark would not be completely forgiven by one generation, to assume so would be silly. It was evident that erring on the side of caution would make her look bad but she wasn't about to risk so much for keeping up appearances.