The 29-year-old reality star told fans Sunday on Instagram that she's "single" but "happy" following her rumored breakup with Kardashian.
Blac Chyna shared a graphic reading, "Single. I'm happy," but later deleted the post.
She shared a cryptic message the day previous, writing, "They won't understand. Once you realize they don't have to. You'll be Free."
Us Weekly reported in February that Blac Chyna and Kardashian, who share 7-month-old daughter Dream, had ended their engagement for a second time.
Sources told People last week the pair have been peacefully co-parenting their daughter.
"Rob and Chyna are getting along, but are not officially back together," an insider told the magazine.
"They are spending a lot of time together. There hasn't been any drama. They want to get along and raise Dream together. That's their main goal."
"They are both complicated people," the source added. "It's very possible they will get back together. But it's also possible that they will have another epic fight. For now, things are peaceful and everyone is happy."
Blac Chyna and Kardashian sparked reconciliation rumors in April following a flirty night out in Los Angeles.
Kardashian dedicated a sweet post to Blac Chyna on Mother's Day the next month.
"Happy mama's day to the mother of my only child @blacchyna :)," he wrote.
"I am so Thankful for our beautiful baby girl and so Thankful for YOU and never thought I could be this happy so thank you for giving me Her."
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