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Rob Kardashian hinted at relationship trouble with his fiancee Blac Chyna as he removed any signs of her on Instagram. Rob deleted all photos of Blac before removing the last photo of himself on Monday, July 25. Blac, meanwhile, hasn't posted a new picture since July 7.

While fans speculate Rob and Blac splitted before their baby is born, an insider reveals that the couple did not break up, they just hit a rough patch while filming their reality show "Rob & Chyna". "They filmed over the weekend and had an argument," the insider tells PEOPLE. "Rob tends to blow up and react very fast. ... They have rushed their relationship so much."

"They are both very excited about the baby," continues the insider, adding that "it's hard to see Rob and Chyna actually splitting. Rob is looking forward to becoming a dad. It would take a lot for him to break up with her."

On Friday, July 22, Kim Kardashian revealed that the family was excited for Rob and Blac's baby. "They have talked to me about names but I would never tell because that's really personal to them. If they want to share that, they could," Kim told E! News, "But we're just there to support them. We're so excited that we're getting a new cousin."

"I was FaceTiming with Chyna the other day and explaining to North [West] that there was a baby in her belly and then sharing the sonogram pictures with North and explaining to her that this is her little cousin and it's so exciting we have a new cousin coming," she added, "I think they're just starting to get into it, but we share a ton of different baby stuff. I think once it starts happening for them we'll have way more tips, once the baby's here. I'm excited to see my brother in this role as a dad. I think he'll be an amazing dad."