Love that is chosen

You and him started out as coworkers in the same company. Every morning when we met in front of the elevator, he would always smile at us until it became a familiar warmth. As time passed, the closeness made the two of you gradually open up, fall in love, and live each day as if you were his true friend and soul mate. But as time passed, his feelings slowly began to change. His once bright smile became a forced one. His once considerate words became short and to the point where they felt different. You start to notice that he's paying more attention to another coworker, the one you work alongside every day. They're laughing, talking, and sharing glances that you've never gotten from him before.