It's her side of the story, is how. She sat through the whole thing, offers no account of how she countered him during the conversation or of what kind of conversations she herself attempted to lead with, and ends with the meat of the matter -- how dare he expect her to put some independent money on the independent table by being independent enough to pay for her own damn drink.
Hmmm I can somewhat see the point and If I'm not feeling a guy and he's being a jerk I wouldn't let him pay for anything I get.