Where was Rob Kardashian during Blac Chyna’s birthday party?

The relationship of Rob Kardashian and Blac Chyna continues to confuse us…

Pictures of Blac Chyna’s birthday party, which was held last night, have surfaced online… but Rob Kardashian is noticeably absent from all of them.

We know the couple aren’t together anymore (this can mean anything from “taking a break” to “calling it quits completely” – no one is ever really sure when it comes to these two) but a few social media users expected him to at least show his face. If not for the birthday girl, then at least for the sake of their daughter…

The on again off again couple may be in an off stage of the relationship right now, but they have managed to come to an amicable agreement over the care of their 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,” a source previously told E! News.

“But by no means are they back together.”

It definitely looks like that’s still the case if his absence at her birthday party was anything to go by.

The only sign of Rob Kardashian came courtesy of an Instagram post earlier in the day, which saw him promoting his Arthur George socks.

No “Happy Birthday” messages for the mother of his child. We wonder if Blac Chyna will have anything to say about that…