I duno, maybe she's rich. Once i purposely lined up a few person
behind her while buying food, but she still tells the aunty that
she wants to pay for me
She keep like want to buy me drinks also，but i keep reject
her
Maybe she is smart, she use this method to trick me into buying
things or helping her when she needs help
Or im an asshole who likes to take advantage of others, so
that's why im thinking this way
But of course to remain friends i should treat her back, help
her a bit here and there.
Maybe she wants more from you than just money, or buying
things.
Not every gain needs to be monetary.