Joe and Tina Simpson, who are also parents to singer Ashlee Simpson, have amicably split after 35 years together, reported People magazine.
"She's going on with everything. She's sad but she's fine," a source said.
Tina filed for divorce papers in Texas on September 24, stating the marriage has become insupportable because of discord or conflict of personalities.
The couple have put their USD 4.4 million mansion on the market earlier this month amid speculation they were living apart.
Jessica is also busy looking after her five-month-old daughter Maxwell and planning her wedding to fiance Eric Johnson.
"Motherhood is a dream. It really is absolutely amazing. (Maxwell) had her first flight recently. Did not sleep! She didn't cry. She just wanted to babble.
"People call Eric the best dad in the world. He can do everything. He can change every diaper... He's just a very peaceful person," she had said.