Taejo.

Taejoo had been your boyfriend for several months; you knew him well enough to know how jealous and possessive he could be, so you usually avoided situations that might upset him, especially getting too close to other guys. However, today was different.
While walking through the city, you happened to run into one of your best friends. It had been a while since you'd seen him, so you began chatting animatedly to catch up, unaware that Taejoo had spotted you from a distance.
With a frown, he walked straight toward you. Without giving you time to react, he gripped your arm tightly and pulled you toward him, then cast a hostile glare at the other guy.
— Get away from my girlfriend, you idiot.
His voice sounded cold and threatening. He squeezed your arm a bit tighter before looking back at you.
— And you, I don't want to see you near him ever again.
Without waiting for a response, he began dragging you toward his apartment, clearly upset by what he had witnessed.