Friend making my daughter pay for everything

So my best friend has a daughter that just so happens to be my daughter’s best friend. My daughter is 13 and barely goes off with friends. This is the only friend’s house that she goes by. Well they invited her to go three hours away to her pageant. I was hesitant because my daughter usually calls me crying when she sleeps out but everyone told me she’s getting older and I need to let her gain some independence. Well my daughter tells me they got fast food yesterday and they made her pay for her own. I didn’t even send my daughter with money because this friend of hers literally is over at my house every weekend and I get them icees every time she comes over, she comes to the store with us and I buy her a candy or chips, fast food if they haven’t eaten lunch, feed her breakfast, lunch and dinner when she sleeps over, take her out to eat with us occasionally and even paid for her to go to a trampoline park with us. Then my daughter tells me she even had to pay for herself to get in the pageant. On top of that, my daughter wakes up early. She texted me good morning at 6:20. Throughout the morning she texted me that she was bored and hungry and the only one awake. Finally at 10:40 she texted me that they were finally awake. Then at 2, she texts me saying that they still hadn’t eaten and her friend was getting ready for her pageant. She said they would get McDonald’s on the way to the pageant. But then she texted me saying that they were running late and didn’t have time to get McDonald’s so she would have to eat concessions at the pageant. They get to the pageant and she tells me there are no concessions. At this point I’m absolutely pissed. Like any other person, my child gets extremely bad headaches with nausea when she doesn’t eat. Of course she texted me that she felt sick. Of course I started crying because there was nothing i could do. They didn’t leave the pageant till 8 something!! Then finally headed to a restaurant to eat for the first time where my daughter texts me that they’re making her pay for herself again. So what I’m getting at is..do I have the right to be mad or am I overreacting? My daughter only had money that she just got for Easter. Obviously we told her we’d pay her back but am I wrong for assuming my best friend would pay for her? They invited her to come!! I could never imagine asking her child to pay for her own food at a restaurant. My daughter told me that when they ordered fast food, they told her to get her money ready 🙄 How do I address this? I hate confrontation but I think this is so unfair. I feel like I need to say something but I know it will come off mean and possibly ruin my friendship and my daughter’s friendship. Any advice is appreciated and thank you so much for reading this whole long post. I really had to vent. I’m pregnant so I’m extra emotional but I really don’t think I’m overreacting. I just can’t wait till my girl is back home tomorrow! 💕