Her bad tone devalues you, so you cannot tolerate that. You shouldn't tolerate that.
Her tardiness gives you one more chance to show off your value by clean up after her. You crave for her appreciation. The more you do for her, the more it hurts to hear her bad tone.
Validate yourself more, so you need less validation from her.
Remind her to speak without emotions. Focus on what she wants to say, the words, and line of thinking. When she gets a job, that'll help.