It really is very hard to know what would have happened had Margaret and Peter Townsend been allowed to marry. Mr. Townsend himself gave his take on it during a video interview in 1995 (excerpts of which are included in this brief bio in tribute to Margaret at her death in 2002):
Personally, I think it's such a sad and tragic situation. And it's doubly sad that since the deaths of both Townsend and Margaret, a lot of revisionist history about the relationship and Margaret's character has ensued. The above tribute I think provides a more accurate accounting.
You won't find accuracy in the Netflix series
The Crown, particularly not regarding the Townsend/Margaret love affair. The actress who plays Margaret has a facial resemblance, but she's too tall. In addition, Margaret is portrayed in an overly stereotypical way, exhibiting behaviors as a young lady that did not actually develop in her until after she was devastated by being forced to give up Townsend. Also egregiously, the actor who plays Townsend, despite carrying a facial resemblance, he's too short. He's almost shorter than the actress who plays Margaret! In actuality, Townsend was much taller and more boyish-looking than he was portrayed in
The Crown.
And if you listen to Townsend's heartfelt comments in the above video, I think its very apparent that 'forced' is the right word to describe why Margaret gave up 'the love of her life.' Someone commented earlier that Townsend had a retiring character whereas Margaret was gay and liked to party. Once again, I would suggest not believing everything that you see portrayed in
The Crown.
Margaret became more willful, rebellious and self-destructive after having to give up Peter Townsend. She and Antony Armstrong-Jones had a torrid sexual affair prior to marrying. In fact, it's possible that Margaret may not have married Armstrong-Jones at all, since they were seeing other people even while they were still having an affair with each other. Margaret had become loose and reckless. It was only when she learned Peter Townsend was marrying a young Belgian girl who resembled her, that Margaret decided to wed Antony Armstrong-Jones -- he just happened to be the handy fellow of the moment.