"Dear Johan:
I love you but I'm not in love with you. I met the most wonderful Luftwaffe pilot last week. His name's Klaus and we share the same birthday! Isn't that grand? Write back when you're in port so that I can take your belongings out of our flat. You can pick them up any time you want. No hard feelings, and I'm sure we can still be friends.
Sincerely yours,
Dora"