An upcoming biography by Walter Isaacson titled Elon Musk shares details about Amber Heard and Elon Musk’s whirlwind romance.

In the chapter about “rocky relationships,” the author discussed Aquaman’s relationship with the SpaceX founder and Tesla CEO, which lasted only a year.

They met almost a year after Heard filed for divorce from Johnny Depp, but their romance ended in 2018.

Musk described their relationship as “brutal.” Heard admitted she still loves Musk “very much,” adding that “Elon loves fire, and sometimes it burns him.”

Isaacson writes that Musk first became interested in the controversial actor after seeing her in 2013’s Machete Kills. Her visit to SpaceX a year later led to the duo meeting.

During their visit, Isaacson revealed Musk took Heard for a Tesla ride, while the actor commented, “I guess I could be called a geek for someone who can also be called a hot chick.”

In 2017, Musk flew to Australia to meet Heard while she was shooting the 2018 superhero film opposite Jason Momoa.

Her book admits that she once commissioned a costume to “roleplay” the character Mercy from Overwatch when Musk said she reminded him of her.

Although the couple had a year-long romance, their relationship wasn’t always lovey dovey as they once got into a heated argument leading to a fight.