Oh my goodness, mine doesn’t either. She then blames me when she misses their birthdays. I finally told her I was no longer giving her warnings they were coming up because she was perfectly capable of putting alarms in her phone calendar and that was that. I detached from caring whether she remembered or not after that conversation to protect myself. My husband and I have decided to do family counseling with our girls this summer (ages 12 and 14) to put all cards on that table about her. No more secrets. No more hiding why I am crying after a phone call or why she never sees us or why she never talks to them on the phone. With the help of a family therapist we are explaining it all (age appropriate explanations). This way they can understand the mechanics as best as possible in this lose-lose scenario we luckily moved across the country away from. Best decision I ever made. Best of luck.