ugh - help, ebay advice needed

[xok85xo]

okay, so heres my problem..last week i decided it would be a great idea to surprise one of my best friend with tickets to see weezer for her graduation/birthday present..well after seeing how much the tickets were on ticketmaster, i decided to check out ebay, and see if anyone was selling tickets there. well, i found one pair of tickets for almost 1/2 of what i would have paid for on ticketmaster, so i put in a bid. i then realized that it probably wasn't a good idea to not consult my friend beforehand, because the concert is the day before graduation, and her parents are coming into town and stuff, ,so i talked to her, and of course she can't go. anyway, about 36 hours before the auction was supposed to end(at this point, i am still the only bidder) i emailed the seller, and explained my situation and told her that i had to retract my bid. she wrote back to me yesterday, about 4 hours before the auction was supposed to end and said that was fine, just as long as i did a formal retraction through ebay. well, at this point it was too late for be to formally retract my bid thru ebay because it has to be at least 12 hours before the end of the auction, but she, as the seller has the authority to retract the bid. well, i wrote her back telling her this, and she didn't get back to me until this morning, long after the auction ended. now, i am legally bound to pay for these tickets, but quite frankly, i don't really want to. i tried contacting the seller with plenty of time to take appropriate action, and i don't really like the band that much. so, my question for all of you is what should i do? should i suck it up and pay her for the tickets, should i argue it out with the seller because as i see it, i was the ONLY bidder..if i hadn't bid there wouldn't have been any bidders, so she's not really out anything...or should i just blow her off and ignore her?