I know a 6 ft girl whose dating a guy who's 5ft 6in.
The height's are approximate, but I think quite accurate.
They are still together and got engaged recently, the guy didn't even need to kneel to propose to her.
This is, the guy is super masculine to compensate for his height, and the girl is super feminine for the same reason.
They do love each other quite a bit.
The girl is a friend of mine and says that the height difference doesn't bother her at all, she knows the looks they get together, but she doesn't care, her fiance on the other hand, is a little bothered by it but has mostly got over it.
It helps that the girl is attractive, the guy is loaded, and the couple are both white and living in the USA.
This is a true story btw, I'll see if I can find some pics to share of them.