Rob Kardashian does not care what his stepsister Kylie Jenner thinks of his relationship with Blac Chyna, who has been feuding with the youngest Jenner over Tyga, according to Radar Online. Kardashian and Chyna’s dating reports emerged last Monday shocking his family.

Jenner and Chyna have long been involved in a beef, with the 27-year-old accusing the 18-year-old of “stealing” Tyga from her. Chyna also has a 3-year-old son with Tyga. And now, Radar Online has reported that Kardashian was not concerned with Jenner over his relationship with Chyna.

“Rob doesn’t care! He honestly does not give a f--k  what his sister Kylie thinks of his love life, or of the situation specifically,” a source told the gossip website. “Rob has always had a special bond with Kendall  out of the Jenner girls, but never really with Kylie. Honestly, Rob just thinks that Kylie is everything that is wrong with the Kardashian family right now. And the part that amuses him is that she is not even a Kardashian!” the insider added.

Kardashian, 28, reportedly sent text messages to his sister saying he wanted to marry Chyna. While his sisters thought that he was joking, they were also worried that he might be serious.

“Rob’s sisters are convinced he is joking, but he is making them upset by sending texts to them saying he wants to marry Blac Chyna and that it will happen soon. Especially since Valentine’s Day is right around the corner. But as much as they think he is kidding, they are also scared that he may be serious and elope in Vegas,” a source reportedly said.