"If she continues helping him, they're really going to accept her into the family," says a Kardashian source of Blac Chyna

By Melody Chiu
Updated March 28, 2016 03:40 PM
Credit: Prince Williams/WireImage

brightcove.createExperiences(); Even though there’s never a shortage of drama when it comes to the Kardashians, one thing’s for certain: the famous family sticks together through thick and thin.

“They’re all about loyalty,” says a source of Rob Kardashian‘s new relationship with Kylie Jenner‘s former nemesis Blac Chyna.

Over the last few years, Rob has been living a reclusive life and battled depression. “Nobody’s been able to help him,” says the source. “Khloé [Kardashian] and Kendall [Jenner] have really tried to get him out of the house, and they could never do it.”

But since hooking up with Chyna, the reality star has lost weight and stepped out at public events with his girlfriend. “She’s come along and obviously it’s made a difference,” says the source.

The family’s matriarch Kris Jenner is “actually super stoked on them being together now,” another source told PEOPLE last week. “She feels like Rob was pulled out of his depression phase because of her.”

And if Chyna continues to have a positive impact on Rob, “They’re really going to accept her into the family,” adds the source.