cuckzone

The area a man finds himself in when he walks in on his wife sleeping with another man and she friendzones him.

Alternatively, the state of being friendzoned after the man has already had sex with the woman in question.

This is further the case when the man in question acts much like a cuckold or one who has been friendzoned. That is, taking vicarious enjoyment from the woman's sexual pleasure and/or trying to be as nice as possible to her in hopes he can resume intercourse with her.

"We'll still always be good friends; you're like a brother to me."
~Chick saying this to a guy while he is being cuckzoned, her being pounded by a stranger in front of him.