Dangerous (Steve Rogers Fan Fic)

Rosemary Carter, the younger sister of Margaret, or better known as Peggy Carter, had enlisted herself in the army as a nurse for two reasons only. One, to help heal and bring some sorts of comfort to the soldiers that were wounded, and two, to be next to her sister Peggy. What Rosemary did not expect was a sudden interest in a scrawny, yet humble man by the name of Steve Rogers, to enter her life suddenly when she is assigned as Steve Roger's personal "friend" around the army base.

After the serum, Steve henceforth becomes known as Captain America and Rosemary is released of her "duty" to Steve Rogers. Yet, her heart tells her that Steve Rogers will need her more than ever, now that he was Captain America.

What happens to Rosemary as she attempts to get in front of the army lines?
Does Steve acknowledge her feelings, does he acknowledge his own?
Will Rosemary do the right thing and avoid Peggy's warning's, no matter how dangerous it sounds?