I don't think flirting is cheating, but it depends on what kind of flirting it is. If it's just casual chit-chat, that's not bad, some people are just more friendly than other people. But if you are touching and hanging over someone, that is a different story. Kissing and hugging and maybe even dancing take it too far. All in all, it's just disrespectful to your partner. If you care about them and they about you and show it, then you won't feel the need to get the attention of someone else.

It's all about respect. Just like it's extremely RUDE for men to oogle other women when they are on a date or with another woman. If you want to go after other 'prey,' go solo!