In a preview clip from her interview with "Good Morning America", Susan can be seen breaking down in tears when Amy Robach asks her what her late husband experienced days before he committed suicide on August 11, 2014, reported Ace Showbiz.
"It's the best love I ever dreamed of," an emotional Susan said of her marriage to Robin.
She also described her reaction when she found her husband's body on the day he committed suicide.
The preview clip also features footage of never-before-seen home videos of Susan and Robin dancing together at their wedding.
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The full interview will air on "Good Morning America" on Tuesday, November 3.
Earlier this month, Susan and Robin's children from his previous marriage reached a settlement in their legal fight over the late actor's estate. The agreement was reached after Susan dropped her petition.
Though Susan dropped her petition, she's allowed to keep some of Robin's items she previously requested.
Meanwhile, Robin's three children, Zelda Williams, Cody and Zachary, "will receive the vast majority of the items they demanded," according to Susan's lawyers.