if your haveing a normal conversation no i dont think its cheating. but why would you hide a normal conversation from your partner. but if you are talking dirty and its to someone of the other sex thats no diffrent the chating or cyber sex.
If your hideing it from your spouse than I would say Yes.Why hide it if you are not doing anything wrong.Thats like buying skin rag's and hideing them from your wife ,thats to bad.
I flirt a little & make comments, give advice etc. But if I were PMing a lady & said I would like to do this or that to her, & my wife didn't know, then that would be cheating.
P.S. Can all you ladies please delete those P.M.'s I sent?
I'll delete your panty pics.
Thanx.