Is AUTHOR wrong in the post ? POST : My girlfriend is going to an event with an entry fee. She wanted me to accompany her, which wasn't particularly exited about, but told her I would think about it. The issue was she wanted to buy tickets now, so we had a quick discussion. She said if I decide not to go, she would pay for the tickets (they are non-refundable).

I later found out there is a dress code, and I would have to pay 170 bucks in addition to the 50 bucks for the ticket, which was too much for me (as a college student), so I told my girlfriend that. She asked me who would pay for my tickets now, and I referenced what she said. She told me that that was under the assumption I would not want to pay for it, but if I want to pay for it I should pay for it, or we can split it 50:50. I told her that doesn't seem fair, as she clearly said she would pay incase I won't go, and that was part of the reason I agreed to this. 

I do understand that she does not feel like paying for it, but if she offered it and I took the offer under this condition, I also don't find it fair that I have to pay for it. In the end she said she would pay for it, but instead I have to pay for other expenses we usually share - which results in the same amount of money being in our wallets as if I paid for the ticket, so I'm also not particularly happy with that solution. 

But before I argue about it, can I have a quick judgment?