Philanthropist and businesswoman Melinda French Gates said it is not her responsibility to answer questions about her ex-husband Bill Gates' association with the late convicted sex trafficker Jeffrey Epstein.

"Whatever questions remain there of what I don't — can't even begin to know all of it — those questions are for those people and for even my ex-husband. They need to answer to those things, not me," she said in the upcoming Thursday, Feb. 5 episode of NPR's "Wild Card" podcast.

"And I am so happy to be away from all the muck that was there."

The advocate for women and girls said she is saddened to think about what the victims of Epstein went through and said that reading about the details of what victims experienced "brings back memories of some very, very painful times" in her marriage with the Microsoft co-founder.

"It's beyond heartbreaking. I remember being those ages those girls were. I remember my daughters being those ages. So, for me, it's personally hard whenever those details come up," she told host Rachel Martin. "But I have moved on from that. I purposely pushed it away, and I moved on. I'm in a really unexpected, beautiful place in my life."