I miss you-Khloe Kardashian tells Rob as he posts intimate pics with Blac Chyna

 Rob Kardashian has shared his first photo of him in years and it features girlfriend, Blac Chyna.Shortly after, sister ,Khloe whom he was staying with before he moved in with Chyna,shared a photo of him kissing her head and wrote  
""It's simple..... I miss you"
I don't understand the game Blac chyna is playing,but Rob looks very happy .