If you think this film was misogynist you completely missed the point...
First of all I only just discovered this film and I actually thought it was outstanding.
For everyone who says Cal was a jerk and this film was all about control, they completely missed the point. The gender roles could have easily been reversed and the story would have been just as compelling.
The point of this tale was what would happen if our perfect vision of a mate was suddenly right there in front of us and totally in love with us? That is what happens. Cal wrote a girl who magically came to life and was just as he wrote her. After succumbing to the reality of the situation it becomes Cal's wish NOT to be in control of Ruby. That was the reason for the conversation with his brother. He wanted it to be a real relationship and didn't want to change a thing. He specifically states he wouldn't change anything about her and no longer wishes to write her.
Problem was, when Ruby was left to her own devices and had her own free will, she began to drift away from Cal and appeared to be falling out of love.
That is when Cal, desperately returned to try writing her again. Trying to keep her loving him. But in the end it became apparent. No matter what he wrote, she was never going to love him of her own free will. She only ever loved him because he wrote her that way.