you and him have been dating for a while now and you both got along great until today...

you two were fighting about something stupid when he just lost it. He didn't even realize but he slapped you across the face. He had just realized what he did right after that and the look on his face showed that he regretted it with everything in him.

"I... I'm sorry! I didn't mean to do it! I promise!" he said frantically, trying to explain himself.