Blac Chyna did what the Kardashians do best and nearly broke the Internet yesterday when she posted a photo of what appeared to be Rob Kardashians tattooed arm wrapped around her with the words, "The beginning," written underneath. Quickly after romance rumors started to fly, sources confirmed that the two are in fact dating, which made everyone wonder what the family drama must be like at the moment as Chyna used to be engaged to, and has a baby with, Tyga, who is Kardashians half-sister Kylie Jenner's current boyfriend.

Chyna already has some bad blood with most of the Kardashian sisters, especially Kylie, so it was only a matter of time before we heard how the 18-year-old reality star felt about this strange new relationship as well.

"Kylie is livid," a source told People. "She feels super betrayed and can't understand why someone in her own family would stab her in the back like that."

Tyga, 26, reportedly also isn't too pleased with the whole situation, either, even though he's not too surprised that his ex would do something like this.

"This is the type of antics Tyga would expect from Blac - not Rob, though!" an insider told Hollywood Life. "Rob's to blame for this, and Tyga has a problem with Rob messing around with his ex. It's just not cool and too close to home for Tyga. He has more respect for Rob than he does for Blac - Blac would do just about anything for attention and to get under Tyga's skin."

"Tyga's stunned," another source told Hollywood Life. "He didn't see nothing like this coming where his homie Rob would be crushing on his baby's mother. Like what? This is some crazy drama that even Tyga can't deal with. He and Rob are mad close and Tyga feels like Rob just stabbed him in the back."

While neither Kardashian nor Chyna have officially confirmed that they are dating, they have known each other for a long time, and apparently got close recently as she was trying to help him out with his health and weight issues. Even though Kardashian, 28, has stayed out of the spotlight for over a year now, they have been together nonstop for several days, sources told TMZ. People seem to believe Chyna may just be using him and taking advantage of him when he's weak to get back at Jenner, though.