Johnny Depp and Amber Heard
Actor Johnny Depp and his fiancee, model Amber Heard, arrive at the Metropolitan Museum of Art Costume Institute Gala Benefit celebrating the opening of "Charles James: Beyond Fashion" in Upper Manhattan, New York, May 5, 2014. REUTERS/Lucas Jackson

Johnny Depp and Amber Heard's relationship is reportedly in "turmoil." The couple is said to have put their marriage plans on the back burner, and things are said to be "cooling off between the pair."

According to People magazine, Depp and Heard are very much in love, but the 23-year age gap is putting stress to their relationship. "There is no rush to marry at the moment," says a longtime friend of Depp to the magazine. "Johnny is crazy in love with Amber, but there is turmoil in the relationship."

However, there is no confirmation to these reports. It has also been reported that Heard "has many different kind of relationships," and she was not impressed with Depp's recent appearance at Hollywood Film Awards, where he seemed to have been drunk, according to reports by NY Daily News.

The "Lone Ranger" actor gave a slurred speech and did bizarre actions while presenting the award to the best Hollywood documentary. He even used unceremonious words in his speech, few of which had to be removed when the award show aired on television.

Depp and Heard got engaged earlier this year, after a year and half of dating. The secret engagement ceremony took place in Los Angeles. The duo shared their special day with their guests like Marilyn Manson, Steven Tyler and Mandy Moore. The engagement took place in The Carondelet House. That time Depp had said he is not good with planning wedding, hinting he has no idea when he plans to take the plunge with Heard, according to US Weekly.

Depp was previously married to Lori Anne Allison for two years. He has also dated Vanessa Paradis. They were in a relationship for 14 years, but they called it quits for unknown reasons in 2012. "The Pirates of the Caribbean" actor has two kids with Paradis, namely Lily-Rose, 14, and Jack, 11.

Meanwhile, Heard has confessed that she is a bisexual. She is open about her sexual preferences and does not want to hide anything from the media, as reported by Elle. She has previously dated artist and photographer Tasya van Ree. They were in a relationship for four years from 2008 to 2012.