A lot behaviours can go unnoticed as part of a bigger issue. Who knows, if she was actually assessed, she could have any number of issues. Sometimes, people are just dickheads and there isnt an illness there. Sometimes, its hidden beneath a bolshy show of attitude. Im just thinking of the experiences Ive gone through and witnessed of others. You need the whole picture, and we dont have that.
.. i just think she comes across really quite unhappy, and she puts on a front. So id believe there would be a degree of anxiety there.