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\'Jealousy Issues\' and Constant Clashes Helped Doom Johnny Depp and Amber Heard\'s Marriage: Sources

As Johnny Depp and Amber Heard\'s divorce battle continues to heat up amid shocking allegations of domestic abuse, sources tell PEOPLE the very traits that attracted them to each other ultimately caused their downfall.

"Johnny was in love with [Amber] and at the same time intimidated by her independence," a source tells PEOPLE in this week\'s cover story.

While the two shared a passion for tattoos and all things eccentric, it didn\'t take long before the romance that seemed unlikely from the start began to implode.

"Amber is fiery and dramatic in relationships," says a Heard source. "She and Johnny fell hard for each other, but they\'ve had problems since the start."

Heard\'s independent streak and Depp\'s insecurities led to disastrous dysfunction within the relationship.

For much more on Johnny Depp and Amber Heard\'s explosive divorce, pick up the latest issue of PEOPLE, on newsstands Friday

A source close to Depp\'s circle says that the actor "has had jealousy issues in the past. He is very insecure when it comes to Amber. She likes to be free and do her own thing, She was really too young and experimental to settle down. Johnny knew this but was blown away by her."

"He was attracted to the very things about her that he couldn\'t handle," adds the Depp source.

In the past week, Heard, 30, has levied domestic violence allegations against the 52-year-old actor in court documents. She was granted a temporary restraining order against Depp on May 21, after alleging that the star abused her throughout the entirety of their relationship. In her court filing, Heard states that "there was one severe incident in 2015 when I truly feared for my life."

In court documents responding to Heard\'s initial court filing, Depp\'s attorney Laura Wasser alleged that Heard "is attempting to secure a premature financial resolution by alleging abuse." A rep for Depp has not responded to PEOPLE\'s requests for comment about the photos, or about Heard\'s allegations of abuse.

"They clashed at every turn," says the Depp source.

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