Is it possible to get back to my daughter and granddaughter, after my daughter rejected me?
Thanks for reaching out by asking your question. It sounds like you were in a really complicated situation with your daughter. Family estrangement can be very difficult and painful.
It sounds like you desire the relationship and are willing to do what is necessary to maintain it. We can only control ourselves, and since this involves another person we have to be patient with them as well. Have you ever thought about family counseling? I am not sure she would be open to that, but that is a suggestion. You could also write a letter to her expressing how you were feeling this can be helpful because it removes a lot of defensiveness you may have with verbal conversations.
As I mentioned, you can only control yourself in this situation, so it may be helpful for you to get individual counseling. If family counseling isn't an option for you to start processing and grieving the potential loss of relationship and connection with her and your granddaughter.
Mother daughter relationships are one of the most complex and complicated relationships out there. Maybe giving her space and time will be helpful for her to process what she needs. This may be helpful for you as well. It is encouraging that she was able to forgive her father, and I know that feels hurtful as well, but it shows that in the future your relationship could look different.
Family therapy can be very beneficial. It would be the two of you and potentially your granddaughter after you and your daughter work out some of the ongoing issues and past hurts. Writing a letter is also a very therapeutic process and can be really helpful for her to be able to receive the information differently than when you verbally communicate with one another.
It is apparent by you asking the question that you care about the relationship so I wish you the best of luck in the process of trying to repair it or trying to let it be what it is and for you to grieve what you need to grieve. It is not easy but with support you can get through it.