Hello @Leeanne
There are sure to be other people. My daughter has been estranged for a long time, 15 years. It has become more and more common. I sent gifts, money and emails for years, but she is doing very well, she told me she learned about cutting off one's parents online, and also had a compromising relationship with a teacher.
I joined a facebook for estranged parents once, and it was good at first to read other people's stories, but I have to be careful to keep my own mental health on an even keel, so left the group after a while.
I like @Krishna way of being calm and firm about letting go of guilt.
Being involved in community actions has helped me. Living for myself again after a long time of pain, physical and psychological. I guess I am 'in recovery" now. Feeling I still deserve a decent life no matter what.
Hope the forums help.
Apple