What does it mean for girls to call boys Shangguan?

There are two possibilities for girls to call boys Shangguan:

First, the other person's surname is Shangguan, and it is also a common way to greet the other person directly, just as greeting is more like "Zhuge" and "Ouyang".

Second, girls have called boys "honorifics". In ancient China, women were more "officials" than their lovers, and "Shangguan" was an "official" above themselves, so it was possible to call them "Xiaguan" in turn, and what's more, they wanted to hold the boy they liked higher than the sky.

If it is the first kind, it is human nature. If it is the second one, I suggest that even if we study or return to the ancient times, we should improve it on the basis of retaining its essence, and we can't imagine and fabricate it out of thin air!