’Normal’ doesn’t mean much.

A more interestigng question could be: is that what she wants to do? Is that how she wants to be? Acting like the dude that insulted her may very well not make her feel better the slightest. Quite the contrary, it can easily make her feel worse: realizing she behaves in similar way as that other person which, imho, should not be considered a role model.

Artists will often use their own frustration, pain and anger (against anyone/anything) as a drive to create things that are not insulting to anyone, that sad destructive energy being transformed into art. Maybe she is something she might want to consider?