Scott Disick doesn't think Rob Kardashian wanted to be famous.

Scott Disick

Scott Disick

The 32-year-old model - who split from the sock designer's older sister, Kourtney Kardashian, last year after nine years together - believes the reclusive star found being propelled into the spotlight "a lot to handle".

Speaking on the 'Kyle & Jackie O' radio show, he said: "Things are difficult sometimes, especially when you become in the spotlight very quickly overnight. Your whole life changes very quickly. He was just getting out of college, and then he became famous quickly, and I think it was a lot for him to handle.

"I don't think that was the path he wanted to be on, and he just got caught in the middle of it."

And Scott went on to praise Rob, 29, as one of the "greatest guys" he knows and suggested his relationship with Blac Chyna has been really good for him.

He added: "He's one of the greatest guys I know. He's got a good heart, and he's just an amazing guy all round.

"He's doing great -- he's doing actually unbelievable.

"He had to take some time off, and I think he was a little down-and-out, but he's doing a lot better, and I think he's very happy."