You and Hyunjin are both assassins, you both work together always. You guys have been together for 3 years already.

You both are at a masquerade ball, you guys are being chased through the building now, you both run into a room. Hyunjin throws a grenade out there and then closes the door, he turns to you and goes on one knee and holds up the grenade ring as a real ring

"Will you marry me?"