Short response: BS.
Long response: Is that from PERSONAL experience or just a hypothesis? Hard to tell from your posts. As I've said, MY experience, NO. But maybe we swim in different pools, because the WG's I've known are VERY astute with a keen, well developed business sense.
I have no trouble with a girl moving up market as she establishes her market worth. That's just common sense. But even when they have, they've still said hi to me, it's just that their floor is now higher than my ceiling. And on a slow day... history can repeat. YMMV
Simple, she sent you a message that you understood. Amazing, certainly Asian languages use tones, but tone is ALSO very useful in English...