My ex mil has been a part of my life since I was a kid, at 17 I had her first grandson and I lived with her during that time and while in college even after her son and I weren’t together. I thought our bond was “family” despite my relationship with her son be it if we were married, dating etc. eventually after almost 20 years I left her son for good but maintained what I thought was a good relationship with the family. I always invited everyone to events with my children, and I made sure to send them pictures and updates weekly so that they felt they were still involved. Recently, I assisted with an event for another member of the family, and there was some miscommunication and I failed to clearly communicate. All of the people that were going to be invited and ended up missing some important folks. This caused a big issue even after I offered to clean it up, and in the last eight months she completely cut me off and never bothers to talk to me. She did not come to my son‘s college graduation and I’m pretty sure it’s because of me and when my son got married, I tried to speak with her and make small talk and she just looked at me and walked away. It might sound delusional, but I feel as if a parent abandoned me because when I was a kid and going through so many things and losing my dad and going through medical stuff with myself and my kids she was always there and whenever she had big issues going on, I was always there for her so I really thought of her as a mom and now I feel abandoned. I know everyone says to just ignore it and leave it alone, but I’m trying to understand how she could leave me like 20 years meant nothing? Also, what if my kid has a grandkid and what about her other grandkids like how are we supposed to do “family” like idk maybe I should just not care and leave it alone