I think that the moment when Buddy reveals to her that he's had sex with the waitress, is the moment when she realized the sexual double standard. She then takes it out on buddy specifically, instead of society as a whole. She needs to figure things out for herself, before she can go blaming individuals for hypocrisy, considering it's just the society-they-live-in's fault.
That being said, I really don't think that Buddy's purposefully being a hypocrite (then again, most people that are hypocrites aren't purposefully hypocrites). It's just society saying that it's okay. Like it's okay to give women drugs that make them forget the pain that they have during childbirth, letting them go through it again and again because it "wasn't that bad," under the guise of them "not really being able to feel anything." I thought that that was the most appalling thing I'd ever read. It just really gets to me how bad it used to be in america (all over the world) (and it's still bad now but sooo much better than before). Men and women just cannot be seen as equals for some reason, and it's just sickening, and I really could go on forever about this. I'll just choose to end it with, we've come a long way, and it's still a long way coming.