United Kingdom, Jan. 14 -- Mandy Moore has "had to sort of mourn" the way her friendships have changed with motherhood.

The 41-year-old actress - who has Gus, four, Ozzie, three, and 16-month-old Louise with her husband Taylor Goldsmith - has opened up on how her social circle and her relationships with those people have changed as their lives move at a different pace.

Speaking to Cameron Rogers on the Conversations With Cam podcast in a preview clip shared by PEOPLE magazine, she said: ""Do you feel like you have seen a friendship sort of take a different course?

"I have friends who have kids that are older, let's say. And I have found that the people I am closest with in my life right now are people who are kind of at the same chapte...