The One Left Behind.

Mildred 'Millie' Mills is a normal kind of gal, who loves hanging out with her two best friends, Steve Rogers & James Buchanan 'Bucky' Barnes.
Even though they've been best friends since they were kids, Millie is deeply inlove with Steve. And doesnt have to heart to come out right and tell him.
As everyone end up growing up and moving on to new adventures, Millie is left bitter after being left behind by the only people she cares about.
Will she get her happily ever after with Steve or will things take a strange and dark turn?