The hotel industry is full of people who are jumped up on their own ego. Some people have to be like that to survive i guess (notice how it's often the people who seem happy to stay working in the job for years to come). I'm making a generalised statement but I'm talking from years of experience so....
There are multiple ways to deal with it. Talk to the offender (or try being mindlessly nice...if they see you as harmless a lot of cowards like this will calm down). Otherwise you could talk to your boss. If she makes your life there really miserable, rightly or wrongly i would consider looking for another job depending on how the whole picture was.
It does sound like bullying if she doesn't treat others this way.