It wasn't easy for Michelle Williams to leave behind the home she shared with her ex, the late Heath Ledger.
"At that time, I was inconsolable," Williams told WSJ for its February issue, "because I felt, 'How will he be able to find us?' "
"This is where we lived, and he won't know where we are. And now I can't believe I thought that," she continued. "Maybe that's what's making me cry is I feel sad for the person who thought he won't be able to locate [us]."
Ledger died in Jan. 2008 at the age of 28 after an accidental mixture of prescription drugs, four months after the couple -- who share daughter Matilda -- separated.
Williams even revealed why she hasn't married since the death of her ex, Ledger.
"I've not gotten married because I have not had a person to whom I would -- so I have not let my sense of conformity or duty override my instincts," she said. "Sometimes [life as a single parent] can feel alienating; at school functions, there's only two of us single mothers. Everyone else has a partner, so we buddy up."
"It's hard to romanticize romance when you're 36. When you've been a parent for 11 years and you've done it alone, you don't have romantic ideals, because you have a practical understanding that you can do it by yourself," she continues. "The romantic idea of meeting your person and having a storybook family life that looks like the model you grew up with -- that doesn't really exist for me."
Williams added that her daughter, now 11, is in a "good place."
"Everyone told me to travel while [Matilda's] young, but they hit a certain age, and they want a life," she said. "So we're stuck -- in a good place. There's a lot of constancy. She's in such a good place that I don't worry about the stability of our unit when I have to go back to work."