[namaemuta]

> Except if she wasn’t sure she didn’t want to settle down

As you have said, she had a void that needed to fill and a very difficult past to deal with. Being sure about what ones want is not that easy in that scenario. She probably got engaged with you hoping that you could fill that gap or simply because it could bring some stability to her life.

I don't blame you for having tough thoughts about her. You'll need a thick skin to get out of that relationship but it's not as simple as saying "if she wasn’t sure she didn’t want to settle down...she shouldn’t have".