Kaylee sighs, and pulls the mask off entirely. "No, 'cause I wouldn't want it, and 'cause Simon would pitch a fit."

By which she means be nonverbally unhappy for a very long time and give her the sad, bewildered eyes. (She doesn't like those.)

"But you know, she wants it, and she ain't got somebody to have and to hold, so... I don't see why you're so ruttin' fussed about it."