For Mandy Moore, that intense moment brought out deeply personal feelings.
For Mandy Moore, Jack and Rebecca's big fight hit a little too close to home.
The This Is Us star opened up to ET's Leanne Aguilera at the Paley Fest in Los Angeles on Saturday, revealing that the intense moments brought out some personal feelings.
"Unfortunately I related a little too closely to that last fight," the 32-year-old actress admitted. "It really touched bone for me."
Moore's own life has included relationship hardships, though she is now happily dating musician Taylor Goldsmith. In 2015, the singer-actress filed for divorce from singer Ryan Adams, after nearly six years of marriage. The split was finalized by June of the following year.
In 2015, the singer-actress filed from divorce from singer Ryan Adams, after nearly six years of marriage. The split was finalized by June of the following year.
While the scene was hard, however, Moore did rave about getting to explore it with her on-screen husband, Milo Ventimiglia.
WATCH: 'This Is Us' Finale: Jack and Rebecca's Marriage Suffers Its Biggest Hit -- Is it Over?
"It is fun to investigate the ebb and flow of this relationship with someone as unbelievable and capable and lovely as [him]," she shared.
As for fans disappointed they didn't get all the answers they had hoped for in the finale -- namely, how Jack died -- Moore said that there's much more to look forward to.
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"We definitely at least have two more seasons of this, and although it is a big part of our story, and a big part of this family story, there's so many questions and stories to explore," she explained. "That's just one of them."
Those stories will include, Moore hopes, a mother-daughter duet between herself and on-screen daughter Chrissy Metz!
WATCH: Mandy Moore Really Wants a Kate and Rebecca Duet, Plus 8 More 'This Is Us' Revelations
"That would be a thrill," Moore shared of the possibility of the two singing together. "I love Chrissy and her voice is just bananas, it's so good."
That's something we'd like to see -- even if the logistics of the time gap on the show require a little... finessing.
MORE: Mandy Moore Shares Hilarious Childhood Throwback Pic of Permed Bangs and Braces
"I'll just have to sing in prosthetics," she laughed. "Which I'm fine with!"
Watch the video below for more on the This Is Us finale.