Why didn't she just have marriage annuled? I would have!
In movies, very unusual things often happen to add drama to the plot.
But seriously - in real life, wouldn't any normal person simply have gotten an annulment? I realize she must have loved him. But any remotely honorable man would have disclosed that the marriage could not be consummmated BEFORE the wedding. Being deceived like that would kill my love real quick.
A dissolution of the marriage would have been far preferable to frustration, misery, adultery & an illegitimate child. Not to mention being murdered!!! I'm assuming they were Catholics. Today, Catholics have even received annulments after children have been born!! Which is absurd, of course.