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?