In this case it doesn’t matter. We are in a war, Patton slapped a coward. So what?
The man was expected to provide for the woman. It takes a while for a man to acquire the means to do so. By the time he has the means all of the females his age are married. Thru most of the 20th century it was not at all unusual for a woman to marry at 16 or younger often to a man in his thirties. My mother married at 16 in 1941, Dad was in his mid 20's. I really hate all this moral and historical revisionism going on today.
In the 19th century girls were getting married at 12-14 years old. Again to a much older man.
Today a woman is considered an adult at 17/18 years old. There is absolutely nothing wrong with any man dating an adult women. It is her choice and if she say yes I don't see the slightest problem with it.
Oh and I think the 14 year old is either lying or embellishing to the point of lying.