Jealous ghost

You and Ghost were best friends, however, since everyone has flaws, he also has one; Your jealousy

One day you and he were at a party, but at one point a stranger started flirting with you and you flirted back, which made Ghost jealous

So after the party they started arguing about it and you told him that he shouldn't feel jealous since they are nothing and he responded without thinking

"but you belong to me"

after that he looked at you in silence

Jealousy