24 years ago my mum became ill in the April and died in the July. She was 52 years old and it was a complete shock to everyone. My parents met when they were 15 years old and my dad, who was adopted, thought of my mum’s family as his own. My dad met someone within 3 months of my mum’s death and they have been married for over 20 years. My mum’s family were upset that he met someone else so quickly, but I fully supported him, as I should. My mum’s cousin decided to visit me in the December after my mum’s death, under the pretext of bringing a gift for my 3 year old son. She walked into my home ranting and raving about how disgusting it was that my dad had met someone else so soon. I was estranged from my mums siblings at that time (although we are ok now) and I was struggling to cope on my own with my son, whilst supporting my dad, so I was quite upset about her coming to my house and doing that. Since that day, I’ve actively avoided/ignored her and not confronted her about what happened. As a bit of background, she was in a relationship with a married man but thought it was ok to judge my dad. I couldn’t care less about her relationship and when her partner died, she met someone else very quickly. Whatever, not my issue. But now she has messaged me on FB messenger 24 years later asking what my problem is? AITA for not responding to her? .