United Kingdom, Aug. 14 -- Kid Cudi feels "sad" about his falling out with Kanye West.

The 41-year-old rap star was signed to Kanye's GOOD Music record label back in 2008, but he's now cut ties with Kanye after being hurt "over and over" by his former mentor.

During an appearance on CBS Mornings, Cudi explained: "It's a sad thing.

"It just will never happen again, you know? And that is the heartbreaking side of things. But hey, I had a lot of things in my life break my heart and I've been able to survive and move past it."

Cudi insists there's no hope a reconciliation between himself and Kanye, 48.

The rapper explained: "He said some things that there's just no coming back from."

In particular, Cudi was angered by some comments that...