Happy birthday @blacchyna 🍉🍉

A post shared by ROBERT KARDASHIAN (@robkardashian) on


No bad blood here... or so we think!

Rob Kardashian wished baby mama Blac Chyna a happy birthday on Instagram, and it's the latest sign that they're trying their best to keep things friendly for the sake of daughter Dream.

"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. But by no means are they back together," a source dished to E! News.

So what's happening with season two of Rob & Chyna? They can't quite film it if they're broken up. We have a feeling the former stripper will weasel her way back in for the pay check!