Kim Kardashian and Kris Jenner
11/01/2011 AT 05:30 PM EDT
Kris Jenner has been happily married to her husband Bruce for 20 years, but that doesn't mean she thinks any less of her daughter Kim Kardashian
for ending her marriage
to Kris Humphries after only 72 days.
"She made a decision based on whatever feelings she had," Jenner, 55, said Tuesday, during an interview on the Johnjay and Rich show
"I didn't interrogate her. She's not the first person in the world to get a divorce or to have something like this happen to, and she won't be the last … People have to stop judging."
Jenner, who says she trusts her daughter's instincts, believed the marriage would last based on what Kardashian, 31, initially thought
"Kim needed to make a very difficult decision and she needed to do that on her own," Jenner says. "She's not five years old. She's a 30-year-old woman who definitely needs my support right now … It's not something that she thought would ever not be happily ever after."
Acknowledging that she and Bruce are "still going strong" despite the "ups and downs" of marriage, Jenner says Kardashian chose not to work on saving the union with marital counseling.
"For whatever reason, Kim felt [divorce] was the decision for her," she said. "I can't judge her and I can't speculate."