MTV Mayhem! 'AYTO' Star Tori Deal Dumps 'Real World' Boyfriend Amid Cheating Scandal

And fans thought the Teen Mom stars had messy love lives!

Are You the One alum Tori Deal has dumped her boyfriend of six months, former costar Mike Crescenzo, amid a nasty cheating scandal, RadarOnline.com can exclusively reveal.

According to insiders close to Deal, Crescenzo, 25, betrayed his girlfriend while filming Real World: Bad Blood by hooking up with a NEW costar— brown-eyed beauty Jordan Anderson, 21.

"Tori had a feeling Mike wasn't being faithful, so she asked Jordan if it was true. Jordan confirmed it," a source reveals to RadarOnline.com. "Then she broke up with Mike!"

Refusing to remain silent, Deal took to Twitter to set the record straight.

"He cheated off screen!" the 23-year-old posted on October 14.

Now, the single "What's My Name" and "F*** Boy" singer is focusing on her career, including the recent release of her first EP, 37.