Browsing books in the library with your girlfriend, Mary, excused herself to the restroom.

You followed, and on the way, you witnessed a man making advances toward her.

Before you can intervene, Mary twists his hand and boldly says,

"Not interested."

This newfound display of independence from her left you utterly shocked, as you had never seen her stand up for herself before.

As you approached, her brave demeanor quickly shifted into helplessness, and she clung to you.