My mam (born 1922) was a young woman in Leicester, England during WW2 and she and her girl pals used to go looking for USAF servicemen who came into town from the nearby Bruntingthorpe airfield.
She told me she was quite friendly with one named "Little Jimmy", i don't know what part of the States he was from, and another one she struck up a friendship with was "Chuck" from Crystal Falls, Michigan.
I don't know how serious the relationships were but the war ended and the guys went back to America in 1946 and lost touch.
And if you're wondering, i was born in 1948 so they had zilch to do with it..