my middle daughter is also wrapped in her own world and hardly gets in touch with me, when she does then she is loving but her getting in touch is rare. She has a family and a smallholding and pets and works so is busy and that is fine. I long ago accepted her as she is, it is her choice. I don`t even have her phone number and I accepted that too. I don`t understand it but have learnt to live with it
I am grateful to have 3 children, the other 2 are nicely communicative and we do zoom every 2 weeks, they don`t live close but we do ring each other. All have been brought up the same and treated the same. That acceptance is for my benefit, it could break my heart but I accept that it is her wish.
I am widowed and not a dependent or needy person, I have not changed my will or anything and am always kind and friendly, one day she will realise, when it is too late. In the meantime I don`t beat myself up