I have experienced this too.
I think ladies who are over nice, over loving, ready to spoil a man with gifts usually have hidden bad character that they're trying to cover with their over niceness. They're usually very disrespectful and rude when upset.
Once had a girlie who had no restraint in expressing how much she liked me, both in words and gifts.
But at the slightest disagreement, she’d insult the hell out of me.
Since then, I’ve avoided girlies who are perpetually insulting in general.