Not wrong, just stupid. lol. you gotta be careful with what you say when talking about such a "sensitive" topic for people - especially when it's to your GF!!
And WTF @ her not giving head? damn, that sucks....
And more of my awesome 2 cents - don't bother trying to talk her into it. especially using logic. try to use her emotions to your advantage. a lot of women say they won't do something sexually, but when you get them at the right time and place in the bedroom, they will do ANYTHING, especially if they feel comfortable and trust you