Blac Chyna's Mom Warns Rob Kardashian: 'You're Going to Ruin ' with Chyna

On Sunday’s episode of Rob & Chyna, the couple headed to D.C. to visit Blac Chyna’s mom for the Fourth of July.

The episode started off with Chyna chatting with her mom, Tokyo Toni, about their upcoming plans. She invited Chyna to spend the holiday with her in D.C., but Rob Kardashian is apprehensive about going.

“This D.C. trip means so much to me and if Rob doesn’t go this could be a make or break in our relationship,” Chyna told the camera.

After Chyna convinces Rob to go along with her to D.C., the 29-year-old can’t seem to find any excitement in it, but knows he needs to be there for his fiancée.

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“We are going to D.C. and being around people I don’t know and out of my comfort zone,” he said during his interview. “But my relationship with Chyna means everything to me so I am willing to do this.”

Later on in the episode, when the couple finally land in Chyna’s hometown, she decided to take Rob on a tour of her old schools and neighborhood.

At one point, she has the driver pull their SUV over so she could take photos with fans, but Rob was not happy about it. He was concerned about his weight and appearance in the photos and wound up getting upset and jumped back into their SUV.

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Things only continued to get worse from there. Later on at dinner, Chyna introduced Rob to her half-siblings and her parents – who aren’t together and haven’t actually seen each other in roughly 10 years.

Within minutes, Chyna’s parents began to argue over the fact that her dad fathered multiple children with different women all within five months of each other.

“My dad was a player,” Chyna said during her interview. “I hope my mom can keep it together and we can have a good dinner.”

The tour continued throughout the episode with Chyna taking Rob to her former strip club and then to a bowling alley to meet her friends.

“I’m really happy and surprised that Rob decided to come out with my family,” Chyna told the camera. “I hope he keeps this up back in L.A.”

Things seemed to be simmering down until Tokyo Toni got a hold of Rob.

During a family bbq party at Tokyo Toni’s house, Chyna’s mom started questioning Rob about his relationship with her daughter.

“When [are”] you going to get married?“ she asked the couple.

Both Rob and Chyna tried to explain to Tokyo Toni that there are things they need to work out first before they can focus on a wedding. This ultimately got Chyna’s mother upset and she told Rob he needs to be a man and stop acting like a baby.

“You gotta stop what you’re doing,” Tokyo Toni tearfully told Rob. “[Chyna] don’t need a baby she needs [you to be] a father … You can’t do what you’re doing. You’re going to ruin it.”

Rob & Chyna airs Sundays (9 p.m. ET) on E!