You and Ghost always fought, you hated Ghost but in his case... it was the opposite.

One day they were arguing rather loudly, saying somewhat hurtful things or insulting each other.

Ghost suddenly said something that made you angry on another level, causing you to lose control and punch him in the mouth hard.

He held his jaw for a few seconds and then cornered you against the wall and said with a serious tone.

"Ha... This blow won't stay like this, you'll see that when I have you on all fours you'll beg me to stop."