Rob Kardashian wished his former fiancee Blac Chyna a happy birthday on Thursday.
The 29-year-old reality star dedicated a sweet post to the model on Instagram for her 29th birthday after skipping her party the night before.
"Happy birthday @blacchyna," he captioned a photo from his 28th birthday celebration in March 2016 . "Happy birthday pretty mama."
The "Keeping Up with the Kardashians" star was noticeably absent in posts from Blac Chyna's birthday celebration Wednesday.
The model rang in the occasion instead with mom Tokyo Toni, friend and WWE Divas star Paige, and a group of other pals.
Kardashian and Blac Chyna ended their engagement in February following a highly-publicized split in December.
Sources denied in April that the pair are back together after they had a flirty night out in Los Angeles.
"They are co-parenting and independently working on themselves but they're more cordial now than they have been, which is why they hung out recently," a source told E! News.
"But by no means are they back together."
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Kardashian and Blac Chyna share 6-month-old daughter Dream.
The model said in the April issue of Cosmopolitan South Africa that she's "in it for the long haul" with Kardashian.
"I feel like everything isn't going to be perfect, but I know we love each other and we're fighting for each other, and the people we surround ourselves with are rooting for us. It makes everything so much easier," she told the magazine.