Online Cheating

So I have a few "online" friends and found this website interesting. They are mostly friends I enjoy chatting with by instant messagaing and have been platonic with.

However, I do agree that internet cheating is addictive and have one man I would say I do have an emotional attachment who's also married.

Be careful- that's what my platonic online friends say! I'm a married woman, do you think that my emotional attachment to the one friend is considered an affair?

Are we both considered to be cheating when we mostly talk platonically?