Her parents may be getting a divorce after 34 years of marriage
, but Jessica Simpson
is coping with the situation well, according to a source.
"She's going on with everything," the source tells PEOPLE. "She's sad, but she's okay."
In fact, Simpson, 32, who is now a spokeswoman for Weight Watchers, has been going along with her routine, which lately has included returning as a mentor on the NBC show Fashion Star
, planning a Halloween party for her 5-month-old daughter Maxwell
and friends, and making regular trips to the gym to work out with her trainer, Harley Pasternak
Four days per week, "no matter how tired is, she goes to the gym," the source says. "She keeps her workouts the same."
Meanwhile, two days after a rep for the family confirmed his split from Tina Simpson, Joe Simpson stepped out
without his wedding band.
"It is an amicable split and there is no third party involved," the rep said. "Any other related allegations are completely false. The family appreciates your respect for their privacy at this time."