Most Helpful Girl
It can be a lot of different reasons depending on the context. In this context she thinks (in her own mind) that you are better is some way. prettier, classier, more stylish, smarter, cleaner or some other form of better than her, and that makes people feel insecure about themselves.
Most Helpful Guy
If you mean " intimidated " my cock is so hard I am literally throbbing and dripping so much clear precum after describing last sexual encounter my balls are just aching, daughter's here have to go, for now