NWR: Help with a friend (LONG)

OK, so this is a rather weird situation, so I would like your opinion. One of my friends came over our apartment for lunch a few weeks ago, and she was carrying a box of expensive chocolates because she was going to give it to another friend for his birthday later that day. She didn't want it to melt while she's having lunch at our place, so we put it in the fridge. She forgot and left it at our place, and never called me about it.

So we had brunch a week later, but she didn't remind me about the chocolates and I didn't bring it because by that point I forgot about it. She was upset when she realized I didn't bring it. She was going to see a show right after that second brunch, so I told her, why don't you call me after you're done, and I'll come and bring it over. She never called and I kinda just forgot about it.

All of a sudden she called today and said that since I forgot to bring it to the second lunch, I owe her money for the box of chocolates. The box of chocolates is still sitting in our fridge because I completely forgot it's there. Am I wrong for feeling weird about this? Is this truly my fault? Should I just pay up? It's an expensive brand, so I would be out quite a bit, but I don't know what else to do.

Thank you!!!