Boyfriend speeds when arguing?

i asked my boyfriend if he loved me, he was already pissed when I asked him. (He stated before that he doesn’t like me asking that bc it’s clear that he does or else he wouldn’t be with me) but he said that he didn’t love me. & I asked him then why did you reassure me that you loved me a few days ago? He was driving the car & began to speed. my question is why do people do this? Why do they speed when they are angry. What is the goal? To scare the passenger and then what?

Boyfriend speeds when arguing?
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