The definition of things- What does it mean to cheat ? (in a relationship)

This is a new series of posts that I will be starting on that I will focus on defining the undefined…There are so many murky  grey areas of life, where it is not black and white…

And the first one being..

“What does it mean to cheat in a relationship?”

So in a random (slightly biased) ask of a few of my friends who hopefully won’t judge me..I poised to them this question and the answers I got were far and wide..

There was no consensus that was reached..but the most common answers I got were:

-When you hide the fact that you are talking/meeting to someone else behind your partners back, i.e. you lie about it.

-You have other intentions with people that you are not in a relationship with.

-You talk to that person more than you significant other (SO)

-Kissing, holding hands or sex with someone other than your SO

Where it became kinda grey :

Is thinking about someone else sexually..tempted??

What about porn? Sex workers? Actors? Who do stuff you normally wouldn’t do with others?

Coz it’s ur job, does it not count?

Emotional or physical cheating?

Where does the line begin and the other end?

Is it blurred?

What are your thoughts?