In a relationship, what constitutes as cheating?

Flirting is O.K., as long as you don't go too far with it. Kissing is going way too far.

Mental, Emotional, Physical cheating. As long you belong to one of those categories, it's cheating.

u can't say that

all of the above

I think if you are doing something with somebody and you cant honestly tell your significant other about it...it's probably something bad. Kissing is def too far & would be over for me! Even thinking about it, or playing out the thoughts of cheating with other women/men. Flirting with talks of doing or planning it ya know!?