Amber Heard 'Got Cold Feet' Before Marriage to Johnny Depp at Their Engagement Party: Source

"Amber kind of couldn't believe it was her life now," a source tells PEOPLE

Photo: Marc Andrew Deley/Invision/AP

brightcove.createExperiences(); Exes Amber Heard and Johnny Depp had their good days and bad days as a couple.

And there was a bit of hesitation on Heard’s side about settling down with Depp.

“Before Amber met Johnny she was just a regular super cool hipster chick living with roommates who dated girls,” a source tells PEOPLE. “At their engagement party she kind of got cold feet… she was just like what is this scene and what am I doing here? She kind of couldn’t believe it was her life now.”

The 30-year-old actress and the 52-year-old actor met playing love interests in 2011’s The Rum Diary. The couple revealed their engagement in January 2014.

WATCH: Johnny Depp and Amber Heard Hadn’t Been Photographed Together for Months Leading Up to Heard’s Divorce Filing

However nearly a year after their whirlwind romance, the couple slowed down their wedding plans.

“There is no rush to marry at the moment,” a longtime friend of Depp told PEOPLE in December 2014. “Johnny is crazy in love with Amber, but there is turmoil in the relationship.”

Though they loved each another, a 22-year age gap was a factor in their relationship challenges. “[Heard] is not really ready to settle down,” added Depp’s friend.

On Feb. 3, 2015, the couple said their “I do’s” in a ceremony at their Los Angeles home, just days before a bigger wedding at Depp’s private island in the Bahamas.

“When Johnny Depp wants you, you don’t really say no. Why would you?” a separate source shared.

Most recently in April, Heard celebrated her 30th birthday without the Alice Through the Looking Glass star. Surrounded by a small group of girlfriends, the actress had a “great time” at The Parker Hotel in Palm Springs.