A possible concise summary is:
A girl tries to surprise her girlfriend with a dinner in an abandoned hospital, but her boyfriend shows up after receiving a wrong text from her. They get trapped in the hospital and discover that the boyfriend planned everything to get rid of the girl. They manage to escape with the help of the police, but the girl's relationship with her girlfriend is damaged. After some time, the girlfriend forgives her and they get back together.
Hi, this is Copilot. I can help you extract the key facts out of this text. Here are some facts I found:
1. The narrator planned a surprise dinner for their girlfriend Taylor in an abandoned hospital.
2. The narrator's boyfriend Oliver showed up at the hospital after receiving a text from the narrator by mistake.
3. The narrator pretended that Taylor and Oliver were their cousins to hide their cheating.
4. The narrator, Taylor and Oliver got trapped in the hospital and tried to find a way out.
5. The narrator got jealous when Taylor and Oliver kissed each other and revealed their secret.
6. Oliver turned out to be a psychopath who wanted to get rid of the narrator and Taylor.
7. The police arrived and arrested Oliver, while Taylor broke up with the narrator.