It’s been revealed that Julia Roberts’ half-sister, Nancy Motes, left a suicide note before her fiancé discovered her dead body on Sunday. Sources say she detailed her poor relationship with the Pretty Woman actress in the letter.

An insider explained that Motes felt so much pain regarding her Oscar-winning half-sister that she dedicated three out of the five pages of the letter to her.

"It was definitely a suicide. She left a five-page suicide letter. The EMT found it," a source told Daily News. "There were three pages of rantings that her sister drove her to do this. There was one page to her mom, telling her how much she loved her, and one page apologizing to (her fiancé John Dilbeck).”

The 37-year-old and Roberts shared the same mother, Betty Lou, but Motes’ father was Roberts’ stepfather, Michael Motes. She was found in a bathtub in the home she was dog sitting in with authorities saying she could’ve been there for 12 hours before she was discovered.

On Jan. 20 and 22 Motes sent out cryptic tweets about her half-sister, detailing their troubled relationship.

"So my 'sister' said that with all her friends & fans she doesn't need any more love. Just so you all know 'America's Sweetheart' is a B----!!'" she wrote. Two days later, she wrote “Do you want to be a fan of someone so cruel? She's not even that good of an actress. Happy you totally F---ed with me? (M)y own family has abandoned me.”

Back in August, Motes told the Daily News she was bullied by Roberts in high school and she would often tease her about being overweight.

Insiders say Motes struggled with living in the shadow of Roberts.

image: 2014 WireImage/image.net