Kylie and Blac shocked fans when they posed for a cosy selfie three weeks ago, hitting back at claims they are arch enemies.
"When we've been best friends the whole time," Kylie captioned the picture.
The source claimed that "Kylie told Tyga that she would never ever be friends with Blac Chyna. Ever."The fact that Kylie totally went back on her word put Tyga over the edge."