The ABC series placed heavy importance upon comments the actress made about the death of her former partner and father of her child Heath Ledger.
"In a strange way, I miss that year, because all those possibilities that existed then are gone. It didn't seem unlikely to me that he could walk through a door or could appear behind a bush," she said during the broadcast, recalling the months following Ledger's passing.
"It was a year of very magical thinking, and in some ways I'm sad to be moving further and further away from it."
However, speaking to The Daily Beast, Williams admitted that she is unhappy with how the soundbites were presented as the interview was not meant to be about Ledger at all.
"I just had an experience with Nightline that got edited in such a way that seemed as if I did go too far. It was a three-hour interview that was edited in such a way that was devastating to me," she recalled.
"They used those few quotes and the way they edited the piece to sell the interview, and it appeared as if I were breaking some kind of silence and sitting down with the express purpose to discuss something that is very private to me."
Williams went on to elaborate on Ledger's death, revealing: "I experienced a lot of loss after his death. I lost my city because of all the paparazzi descending upon us.
"I actually lost my journal during that time, oddly enough. I literally couldn't hold on to anything. It felt as if things were literally slipping through my fingers."