Well... I don't really know anything about this. It does seem weird... & maybe a bit suspicious on the surface.

I guess the one thing I can say with regard to it is that I know, from what my wife has told me, there tends to be a lot of gossip that goes on in a hair salon.

Of course, my wife is referring to the types of salons that cater to women. And you said your gf is a men's stylist. But I suppose it could be a similar situation. Perhaps your gf simply doesn't want her private life to become the subject of salon gossip? That's the only other possibility I can think of...