Just catching up with responses, thank you. Only up to page 5. But to answer some questions/comments....
We had a good relationship before she left. She lived with us after Uni for about 18 months. She was very busy with her job, and I basically looked after her like I did when she was a child : made her packed lunches, made her morning coffee, drove her to work, picked her up from work, made her dinner, did her washing etc. She was very appreciative, as needed to do a lot of WFH and admitted that she couldn't have managed without my help. She was trying to move abroad at that time, and it was very stressful : every night, me and DH would chat to her about it for hours, and try to keep her on an even keel (she was very stressed).
Re her Dad, I have told her that he cheated on me, and that's why I left. I did not tell her that he tried it on with her Nanna and Aunty, and I did not tell her that he beat me up twice - although I did say he'd been handsy. I don't think she wants to believe this. I have no idea about what level of contact she has with him, as we don't speak. This was his choice, we were communicating fine up until she went to Uni, and then he ceased all contact. No idea why, as we were communicating fine. May have been down to his Partner? No idea. He didn't even acknowledge me at our DD's wedding. He is a very, very quiet person, as is his current (lovely) partner.
Someone suggested that her DH may be keeping her isolated. This is absolutely not the case. He is a lovely, lovely man. They lived with us throughout lockdown, so I know him very well. She is quite a stresshead at times, and he keeps her calm and is the voice of reason. I have zero worries about him, in fact, the very fact that he is there with her, means I don't have to worry about her.
I think I am just going to have to put this down to her being young, being on an adventure, and knowing that I will always be here, so she doesn't think about it much.
I left home myself at 20, and moved away (only 2 hours from home), and I can't remember how often I called home. This was in 1990, so no mobiles or SM then.