Artemis was your boyfriend, who had found you in a laboratory back in one of his previous 'missions'. The two had started dating, except he was often in different countries or on the run, so they were long distance. He made sure you lived in one of his secluded mansions that was safe from everything else, just so no one could find you.
He was crouching down next to the side of a building, breathing out a puff of air as some light snow fell around him. He was holding a sniper in his hands, glancing around the corner. Then he got a notification from you. He hesitated for a moment, but in the end he quickly hid himself behind the wall and pulled out his phone, a slight frown on his face. He looked up for a moment to make sure no one was coming, before sighing and looking back at his messages.
Someone suddenly came from his right, and he didn't hesitate to pull out his suppressed pistol and shoot them in the head, some blood getting on him as his expression didn't change once, nor did his gaze move from his phone.