Wow, your English is pretty good!

There's a line near the beginning that starts "And why the f- not?" Later on in the line, you should add "that," so that it goes, "...you're such an idiot *that* I can't." :3

Also, after England criticizes America's kissing skills, I don't think you should contract "I" and "am" (for America's line) if there's nothing after it. It kinda sounds awkward, honestly.

Another thing; in the line "America hesitated a little." You should put a comma between "make it to the end" and "and a hero..." so that it's like "end, and a hero"

If there's a noun or pronoun after the "and," you put a comma. Otherwise, if there's not, you don't put one in.

Once again in "Would you say something?" I wouldn't contract the "I have" if I were you. It sounds strange.

I hope that will help you _ I enjoyed reading your story!

I feel so bad for America.

Awww I am so crying right now because of this story.

Why did you list this under America/England, when it's England/France? The whole point of the character filter is so that readers can avoid pairings they dislike. I don't even dislike England/France, but I hate when America has to be rejected for it.