Issue with Fidelity

Sitting at the bar, sad Rob told the bartender that he was drinking to forget the heartbreak of his broken engagement.
“So what happened, dude? asked the bartender.

“Well, what can I say.” said Rob, “Would you marry someone who didn’t know the meaning of the word faithful, and who was flip and even vicious when the subject of fidelity came up?”

“No way in hell” said the bartender.

“Well,” said Rob, “apparently, neither would my fiance.”