Johnny Depp fears Amber Heard is cheating on him with Cara Delevingne

Cara Delevingne, Johnny Depp and Amber Heard

Johnny Depp was reportedly "driven insane" by fears that Amber Heard was cheating on him with Cara Delevingne.

Johnny Depp and Amber Heard

The 52-year-old Hollywood hunk is said to have been suspicious that his bisexual wife and the British model were "making a fool of him" and he feared that Amber, who he wed in February last year, would be unfaithful.

A source close to the situation said: "Amber's friendship with Cara, which grew closer and closer over time, brought about the beginning of the end for her marriage to Johnny.

Cara Delevingne

"They used to party together a lot and made no attempt to hide the fact that they were quite flirty. Amber always made her bisexual tendencies quite obvious. But that would spark furious rows with Johnny, who hated how indiscreet she was being. On one occasion he even screamed at her, 'You're making a fool of me'," the source further said.

One of the most noteworthy bust-ups is reported to have occurred in 2014, when Johnny had rented a North London mansion while filming Alice Through The Looking Glass, his latest release.

The source said: "He found her obnoxious and disrespectful and would ask his staff to warn him when she was going to be around. He didn't like quite a few of Amber's friends, but he took a particular dislike to Cara. It was the friendship with her that really started to drive him insane."