OK! Exclusive: Rob Kardashian's 'Former Flame' Rosa Acosta TELLS ALL About Blac Chyna's Pregnancy!

Rosa Acosta is an established model who is also famous for her 2011 appearance in Keeping Up With the Kardashians alongside Rob Kardashian. The two had a fling for a brief period before moving on. While promoting the Versy App launch in conjunction with Complex magazine over the weekend, she dished on his new leading lady, Blac Chyna — and revealed her thoughts on her former partner's relationship.

Rosa told OK! exclusively, “We’re all friends. I’m super happy for them and I wish them the best."

Rosa told OK! exclusively, “We’re all friends. I’m super happy for them and I wish them the best."

"I’m really, really excited for them. I think Chyna is a beautiful girl — she’s an entrepreneur and she is very smart. I’m so happy for everything she has going on right now; she’s like killing it. She’s making money, she has her new show, she’s having a baby, getting married, everything is going good for her — and I’m actually truly happy for her," she continued.

Rosa had a pretty intimate past with Rob, and even got pregnant in one of the most shocking KUWTK episodes. However, she later suffered a miscarriage.

While she is currently single (but dating) and focused on her modeling and fashion business, Rob has clearly moved on, and is now engaged to Blac Chyna, though it is great that the two have remained friends!

What are your thoughts on Rob's ex supporting Blac Chyna? Let us know in the comments section.