you and Keegan are in a relationship since some time, until that day. He met a girl he knew from his past long ago, his gaze soften when he see her. His gaze only always soften when Keegan was with you, now by her. You go to a private talk with him about it.

"I kissed her, once. Okay. Ages ago and for like a.. a second, but that's it! I swear to god. It meant nothing." Keegan said convincing, even though you can feel he also love that girl, it hurts.