It's as if DD sees her mother as a shameful secret.
Jol960 undoubtedly this is the case and the OP is very lucky that some contact has been made, I have close experience of just this situation.
Daughter had been running away for several years, until she was 16 the police took her back regularly, at 16 she moved out for good and hasnt spoken to her mother since. Daughter only lives a few miles away and has 2 kids, no contact to this day. Mother was badly abused as well, she had to know what was happening but was too intimidated to report it for many years.
Father did eventually get jailed, the very last thing the daughter wants is for her new family to know all the background. The OPs daughter is in exactly the same place she is not going to take the chance that any secrets will be exposed. She will already have told her in-laws a story (fairy tale) about her childhood and parents and does not want that contradicted.
Enjoy what contact you are allowed
In danger of becoming estranged from adult children

