No she didn't. She went to her daughter's recital. It wasn't about you. Her life doesn't revolve about you. She told you she thought you only worked school events so she didn't think you would be working that event You are going to have to learn to face the reality that this person has her own life and she is not your mother. You seem to be decompensating in large part due to your confusion about your relationship with her. I hope you will find a qualified therapist to work with so you can really work on yourself and your healing.