What Counts As Cheating On Your Partner?

A question I am often asked is - “What Counts as Cheating in a Relationship?” My summary reply is - “When you do, say or write something that you wouldn’t want your partner to see, hear or read then you know you are being unfaithful” Cheating or unfaithfulness is difficult to define because people often differ in what they deem appropriate contact or interaction for a partner to have with someone else.