Just a quick gripe.
Why can't people be honest, they use sites designed for singles to meet, and keep quiet about the fact they are married, even put their "status" down as single. Then they start to chat up someone of their preferred sexual orientation, and don't enlighten them.
It is the words people use while chatting that give the game away however, also they unusual times they are available to chat at as well.
Yes! I have had this happen to me at least twice to my knowledge.