I think that's the general consensus -- in a healthy relationship and under normal circumstances, most girls wouldn't think of asking, and most guys wouldn't mind chipping in.
The fact that she's going nuts about what seems to me a pretty small issue, and tying it into so much other stuff (who would dump an otherwise great guy over $13.50 a month?) is just ridiculous.
If he's an asshole and acting like it, then dump him. Don't make it about the birth control. Just say, "This isn't working out. We shouldn't see each other anymore," and call it a day.
Hahahaha -- added bonus: now you have no reason to pay that $25/month.