Johnny Depp and Amber Heard's relationship is reportedly in ''turmoil.''

The couple, who confirmed their engagement in January after less than two years of dating, have put their wedding on hold following speculation the 28-year-old actress was ''unhappy'' with her fiancé's strange presentation at an awards ceremony last month, where he appeared to be drunk.

A source close to the pair said: ''There's not rush to marry at the moment. Johnny is crazy in love with Amber, but there is turmoil in the relationship.''

The actress is currently filming 'Magic Mike XXL' and friends think she may be losing interest in the 51-year-old 'Lone Ranger' actor, who has daughter Lily-Rose, 12, and son Jack, 12, with ex-girlfriend Vanessa Paradis.

The insider told PEOPLE magazine: ''She is not really ready to settle down. Amber flirts and has many different kinds of relationships.''

Amber was previously said to be have been mortified by Johnny's sloppy behaviour at the Hollywood Film Awards in November.

A source said at the time: ''Amber couldn't believe he had made such a fool out of himself.

''This reflects really badly on her, and she's not happy about it.''