Tiffany and Stef are the same person.

"Who the hell played that goddamn video, Joanne?!" Xander yelled in the direction of his secretary.

"Sir, I was completely unaware of this situation." His secretary expressed both surprise and fear in response to the situation.

"I can't believe you were so clueless!" He yelled out loud once again.

"Xander would you please calm down." His best friend Neil interjected.

"Fuck it!!! I was the one who was fooled here! Why, all of a sudden, she became the victim, and I was the villain!?" Xander had developed a strong temper.

"It's all because of the video."

"I didn't know anything about it!"

"Do you have any idea who it could be?"

"I don't know." He poured himself a shot of whiskey.

"What do you think about Tiffany? I just found out that she got back." Neil proposed.

"Impossible." He muttered.

"There's nothing impossible to someone who's crazy about love."