Fleetwood Mac's frontwoman (the band hits the road for their 2013 tour in Columbus, Ohio April 4; tickets go on sale Dec. 14) opened up to Us Weekly recently about the 22-year-old actress and her boyfriend Robert Pattinson's rocky summer.
Twi-hard Nicks, who has struck up a friendship with the duo over the last few years (she even wrote a Twilight-inspired tune for In Your Dreams), said she thinks people need to give Stewart -- who cheated on Pattinson in July with her married Snow White and the Huntsman director Rupert Sanders -- a break.
"I was her age once, and exactly what happened to her happened to me two or three times, and whoever it was that I was with forgave me all two or three times,"," the rock icon, 64, explained. "The fact is that when you're young and you've been in a relationship for a long time and something comes along that is a little bit overwhelming and magical, and you're kind of in another situation with someone else . . . Things happen."
Added Nicks of the criticism that's been lobbed Stewart's way, "I really always want to say to people, 'People who live in glass houses shouldn't throw stones.' It's not anything the rest of us haven't done."
If Pattinson is willing to forgive her, everyone should let them be together in peace, according to Nicks. Says the star, "If what they have is that special they can overcome it, then good for [them]."