Change your name:
America: Hey Iggy, I don't like your family name.
England: Eh? Why?
America: It's not cute and it sounds uncool. Plus it's too formal and weird for my taste. Can you do something about it? It bothers me.
England: God! Why do you always get bothered on every little thing I have. Seriously, including my family name? Deal with it idiot. I have whatever I wanted to have, so like it or leave it.
America: If you say so. But if I would given a chance to change it. I would.
England: name it then.
America: Arthur Jones.
England: * blushing * wh-what?!
America: Marry me if you want that name