To make it easier, will use fake names.
Emma is annoyed that Sarah asked her a question about babysitting in a text on Friday night. Emma still hasn't got around to making plans regarding care for her son and Sarah said she urgently needed to know as had been waiting to hear the plans for quite some time. Sarah had been told she 'might' be needed to help in 2 weeks time.
Emma feels that Sarah should not intrude on her weekend when she knows Emma is with her new partner. Before Emma met the new partner she would regularly text Sarah on a Friday night and of a weekend. Sarah is feeling frustrated that she is being left hanging and of feeling ignored.
Who is being unfair?