dramasite
One who feeds on, contribute to, or derives pleasure from the drama of others or themselves. This person creates drama out of nothing, or increases the drama of a situation with the sole purpose of gaining attention, pity, or sympathy from others. Their natural habitat is the mountain made out of the molehill.
Becky is such a dramasite, the barista put sugar in her coffee instead of sweetner so now she went to speak to the manager.