Cheating isn't always physical, flirting or kissing. If you're texting a woman and your partner is uncomfortable with it, but you think it's more important for you to keep the other woman's friendship, That's emotional cheating. Truth be told!
Cheating doesn't mean you have to kiss, meet or have sex with someone else. Once you find yourself deleting messages so your partner will not see them, then you already are there. I agree Can't stand a cheater!