As Maggie Q says, her character sees the reality of the situation and she knows that whatever her feelings are, she can’t simply do whatever she wants.
What is clear is that there is no happily ever after for this relationship.
Considering how rarely we see women at the forefront of movies like this, it’s that much more rare to see that woman behave in such a way.
So often stories led by women are about romance first, and while there’s nothing wrong with a little romance, it’s nice to see something else now and then to mix it up.