Today I went on a day trip to a popular my ltr. Everything’s going well until recently.

For context, we only have one portable battery. I let her use it earlier in the day as she uses her phone a lot. Later in the day, we’re hot and tired on a subway back and while she’s using the charger it runs out of charge and she doesn’t have much charge left on her phone. She gets really upset it ran out a charge and I mention she used her phone a lot and charged her phone earlier. She denies. I stay firm saying she did in fact use it earlier. We bounce these back and forth until she just gets really upset and refuses to talk. We silently walk to a museum we were gonna go to. We walk in the museum and we’re told we can’t have drinks in there. We walk outside and I start drinking. Shortly after she drinks a little and throws it away and goes in the museum by herself. I don’t follow seeing if she’ll go through with it. She does. I waited 5 minutes and she doesn’t come out and I left a block down to go in a Starbucks where I’m writing this. We have bus tickets to get back in around 5 hours. What do I do. Please help