Professional ballroom dancer and star of “Dancing With The Stars” Mark Ballas has reportedly gotten into a heated argument with his girlfriend, singer Tiffany Dunn over a cigarette.

Reports say the fight started outside the Playhouse nightclub in Hollywood just after midnight of Tuesday. It seems that Tiffany Dunn was completely outraged when Mark Ballas broke their deal. Dunn agreed to sell her scooter after suffering injuries due to an accident, and Ballas in turn agreed to quit smoking. However, one of the friends of Tiffany Dunn caught Mark Ballas puffing a cigarette and told Dunn. That’s when the argument erupted.

Tiffany Dunn shouts during the course of the argument, “You’re such a d**k when you drink.” To which Mark Ballas responds, “You can cry me a river for all I care, and you can swim in it.”

Mark also added, “You punched me in face 3 times today,”  and Tiffany responds, “I was dancing.”

Tiffany thinks Mark’s fibbing about smoking is a gateway lie: “It makes me wonder what else you lie about. Yeah, exactly, exactly, exactly, what else have you lied to me about?”

Mark Ballas then snatches Tiffany Dunn’s key chain from her, removes his house key and then hands the chain back. Dunn pushes him and Mark leaves.

Sources claim that Mark Ballas and Tiffany Dunn were “hammered,” but all ended well. They got a cab together and went home.

‘Dancing with the Stars’ pros Derek Hough and Mark Ballas do not agree with the way Abby Miller of ‘Dance Moms’ handle the kid students of the show. The two guys say it’s “child abuse.”

Dance Moms‘ star, Abby Miller was recently bashed as well by Katherine Heigl, as the actress accused the instructor of demeaning her students, and diminishing their self-esteem. Following Heigl’s footsteps then were Derek Hough and Mark Ballas. The two professional dancers went on Twitter rants this week, slamming reality star Abby Miller for how crudely she treats her kid students on the Lifetime show. Reports say Miller is often seen yelling at the young contestants during her televised classes to the point of making the little girls burst into tears.

“I’m sorry, but this ‘Dance Mom’ show is straight up abusive. Kids Run!!!!!!! It ain’t right,” 26-year-old Derek Hough tweeted on Wednesday. “Child abuse isn’t right. I’m livid right now. I believe in discipline and a strong work ethic. But there is nothing productive about screaming and making little girls cry over being on the wrong foot,” continued Derek Hough.

Supporting the remarks of Derek Hough, Mark Ballas tweeted that Abby Miller should be fired. Mark Ballas also pointed out that “kids are impressionable and I don’t want young children being afraid to take up dance because of this lady.” Additionally, Mark Ballas said, “Correct teaching is patience, discipline, confidence building and love. She needs a reality check.”

Meanwhile, Abby Miller recently appeared on “The View,” where the dance instructor defended her techniques, claiming that some children need the strict approach, even if that includes the foam bat.

According to TMZ reports, the precious Audi SUV of Mark Ballas from ‘Dancing with the Stars’ was totally wrecked, but unfortunately Mark Ballas was not the behind the wheel of the Audi SUV when it all happened, but his girlfriend Tiffany Dunn.

The ruckus happened Saturday night on the Sunset Strip in Los Angeles, sources tell TMZ. Mark Ballas’ girlfriend Tiffany Dunn was driving his Audi SUV when she accidentally crashed into one guy’s Porsche who has driving in front of her. This caused the guy’s Porsche to go careening into another car in front of him.

Fortunately, the people that Tiffany Dunn rammed into, along with her, were fine. The damage on the other two cars was not really that bad, however, we cannot say the same for the Audi SUV of Mark Ballas since it suffered most of the damage from the car pileup. The Audi SUV of Mark Ballas was left in a condition not suitable for driving anymore.

Reports say that the car was eventually towed to safety, and that the insurance company of Mark Ballas is taking care of everything else.