Prankster Roman Atwood tried to pull a fast one on his girlfriend, but in the end he was the one to nearly have a heart attack.

On their fifth anniversary, Roman put on a serious face, and confessed to Britney that he cheated on her.

But Britney saw Roman set up the hidden camera, so she gave him a taste of his own medicine, and told him she also cheated.

Girlfriend win!
Some question the authenticity of the video. What do you think? Real or fake?