Nothing wrong with you.
That woman is the possessive type, she guards here
"territory"
Just because you are younger than her, prettier than her, you will
be in her bad books (for the time being).
It will take time to get settled into a new job.
When you are relaxed and familiar with your new surroundings,
things will smoothen out.
Office etiquette dictates that you do not "borrow" things without
permission.
