While Princess Margaret stayed on the sideline for much of's third season, her relationship drama came to a head in the finale of the Netflix critical favorite. With her marriage seemingly irreparably damaged, Margaret overdosed on sleeping pills.
. "I think she suffered from real depression, Margaret. I think her friends pretty much confirmed that. She had a total breakdown when her marriage went bust, and I think she took the sleeping pills. I don't think she particularly was thinking straight. We had a longer version to the scene and that was in, but a lot was cut. What she wanted was the pain to stop because she was in such a dark place. It is shocking to know that, but I think it's a real admission of vulnerability.
"The Queen found fit to say to her, 'You are the most important person in my life.' I found it so moving when Olivia delivered that. That's all Margaret needed to hear. She felt totally rejected by her husband. She felt useless, obsolete, as if she had no role. To be told by her sister, actually you, not her husband or her mother, are the most important person — that's what she needs to carry on.
"She had personal charm and she knew she could seduce. She's a highly seductive character. So we had to have the high before we had the low," Bonham Carter said. "They also had huge chemistry, those two [Margaret and her husband]. Huge fun but they were very competitive and they weren't a great emotional support, ultimately."