Rob Kardashian has trust issues with Blac Chyna

Reality TV star Rob Kardashian is reportedly worried his fiancee Blac Chyna will cheat on him.

The "Keeping Up With The Kardashians" star, who is expecting a baby with Chyna, is "very insecure in their relationship", reported People magazine.

"They've had many instances and fights in which he accuses or suspects that she's cheated. His issues with trusting girlfriends are deep-rooted," a source said.