Charlie was not unhappy that Rosalie was unwilling to attack her own biological father and her half-siblings. Instead, he felt very relieved.
In truth, if a person was indeed willing to attack their own brothers or sisters or even her own biological father, Charlie would certainly have to guard strongly against such a person.
This was because, in his opinion, no matter how bad a person was, she could be without humanity. If a person truly did not have any humanity at all, even if she were to o