I'm going to leave my girlfriend alone in the street
Why would you leave her alone? Did she do something wrong?
I was sitting at a dinner table and she started an argument with me without any good reason. She's stupid.
It is understandable to get upset during a fight but you shouldn't leave someone stranded. They could get hurt and they will remember that you left them and it will be harder to recover the relationship.
I don't care, I just want her to realize how much I mean to her, even if I hurt her a little.
In this scenario though, you're hurting her and not the other way around. Instead of leaving her in the streets, try to just tell her what she did wrong calmly and sincerely when you both are talking in private so that it won't happen again.