Rob Kardashian's ex-girlfriend thinks it's "absolutely awesome" he's engaged to Blac Chyna.

Adrienne Bailon

Adrienne Bailon

Adrienne Bailon - who dated the once reclusive reality TV star for two years until their bitter split in 2009 - is thrilled her former beau has found love with the 27-year-old-model but is yet to congratulate the happy couple on their shock news.

Speaking to E! News, Adrienne said of her former partner: "I think everybody deserves happiness and I think it's just absolutely awesome. He [Rob] looks like he's so happy."

The 'Keeping Up with the Kardashians' star, 29, shocked fans earlier this week when he popped the question to Chyna with a $325,000 diamond ring following two months of dating.

And Adrienne isn't the only ex pleased the for new couple as Blac's former fiancé Tyga, with whom he has three-year-old son King Cairo, is pleased the brunette beauty is happy.

Taking to Twitter, Tyga - who is now dating Rob's half-sister Kylie Jenner - wrote: "Everybody deserves 2 be happy. What some1 does for their happiness is not my concern, as long as it's not interfering wit my happiness. It makes me happy to see the mother of my son happy. My only concern in this situation is my son. I want him in happy environments (sic)."

Meanwhile, Blac - whose real name is Angela White - can't wait to become part of the Kardashian clan and is even planning to adopt the famous family's surname.

Her representative said recently: "She was more than excited, she was thrilled, just super happy. She's soon to be Angela Kardashian. She's ecstatic."

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