Is kissing another person while married considered an affair?

Answer 1

Best possible answer, maybe. Infidelity is defined by two things: the emotion involved in the act, and how far the act goes.

Kissing others, while a bit taboo in American culture, is typically an innocent, albeit intimate, act. Typically while in a monogamous relationship, intimate emotions are reserved for the other person alone. It can be interpreted as betrayal and infidelity if one demonstrates intimate emotions toward another.

Best scenario is to discuss how your partner feels about it. If your partner feels that you kissing another is infidelity, then you must respect that.