Sisters

I have a half brother and sister and recently my brother passed away.We are not a close family but when we get together things just seem to slip into place and we resume quite an easy relationship. I suppose you could say we have busy lives. I had known of my brother's illness and he had told me towards the end not to get in touch but to remember him as he was. On his death I rang my sister to be met with a vitriolic response saying I had not been to see him and I lived closer to him than she and she had managed it. I did not feel at that time that I had to explain myself. At the funeral she sat in front of me and gave me such an evil look that her own daughter told her to grow up, apologising for her. What hurt was during the wake she denied having a sister to a friend of mine categorically saying we never were sisters and never would be.She is 10 years older than me and although we were not close growing up we were sisters sharing things sisters do. I am now beating myself up thinking I should have been to see my brother and believing that I am an uncaring selfish person .My instincts tell me to contact my sister and explain and even bring up things that have happened over the years ,she never went to see our mum in hospital as she was dying as she hated hospitals and I understood, nor has she contacted me it is always me that lifts up the phone.It is making me feel quite rotten about myself but my son just says let it lie she is not worth it What do other readers think ?thanks

Sisters