I'm the reason my dad's ex-wife divorced him and he never got over her

I lost my mom when I was 7 and my dad remarried 18 months later after dating his ex-wife for six months. She tried very hard to fit into the family as a wife and mom but I didn't want her to be motherly toward me and I rejected all her efforts to be there for me. My dad would try to encourage us to bond all the time. He'd plan vacations for us and he'd send us on girly spa days together and he made sure she was present for every school play or dance recital. He also made sure she was at every medical appointment I had for the medical conditions I had. His ex-wife was heartbroken that none of it brought us closer but she was sure that eventually I would come around. Then when I was 11 I had to be rushed to the hospital because of a very scary flare of one of my conditions. I thought I was going to die and my dad's ex-wife was the person at home, she called the ambulance for me and she was at the hospital. I tried to send her away several times before she left when my grandmother showed up. I was crying out for my mom and dad and kept saying I didn't want her to touch me or sit next to me but when my grandma showed up I reached for her. Apparently it was the straw the broke the camels back for her and it was when she realized I seriously did not like her because even when I was scared and a mess and worried I would die I didn't lean on her for comfort or accept her being there. I was still in the hospital when she told dad it would never work. She told him it was all too much but she told his parents (not my grandma who showed up btw that was mom's mom) that if I could reject her even when I was in crisis like that day in the hospital, that she would never be able to have a loving family because she would always be an outsider and unwanted by me and if she had her own kids with dad I might not want them either. They never told dad what she told them but they did tell me about a year after she left/after my medical emergency. It has been almost a decade since that happened and my dad never got over her. She moved on but he never dated again. He told others that he loved her so much and it didn't seem fair to be with anyone when he felt that way about her.