I don't think she comes across as rude or uninterested, I think she's just not a preppy, over-the-top type person. I wouldn't go out there waving at people and blowing kisses to fans, that's just not who I am and I think it seems kinda cheesy and lame. But I understand when you have younger fans (or fans in general) it's part of the job. I think that part of the pressure she felt, not just about her physical appearance, but everyone wanted her to be a bubbly chatty type of person, and if you're not like that it can be exhausting to try to fake.