When my step-daughter had her child, she would not even bring her to our house because it wasn't clean enough. Basically, I wasn't OCD like her and her mother. Really, it was just an excuse. She had loyalty issues with her Mom. It is a long story and goes back to when she was 13 and her mom left DH and her here in the Midwest so she could move back to the West Coast to be with her lover. Since her Mom and other Blood Grandmas couldn't be here, then I couldn't be there either even though I just lived a couple of blocks down the road. This wasn't the only thing SD went insane about regarding my GD. It was like she wen temporarily insane and all the issues she ever had, and she had a lot, dictated her behavior.
It was tough not to take it all personally, and it hurt like hell. When GD was three month old, they had tons and tons of pictures of her with people who had seen her only once or twice, some of who have never seen her since, and none with DH. After I pointed this out they made sure to get some. It was when she was nine months old that SD realized she had none of me and GD and it was only after GD was a year old that she took some with my DD.
We were patient. We did anything they asked of us, their requests were always reasonable, we took every opportunity we could get to see GD, we did not show our hurt or our resentment and we not only were accepting, but also supportive of their parenting choices even if we did not agree. Mostly, we kept our mouths shut and let them find their own way.
When she finally came around, it was like the previous months had not happened. They were at our house at least once a week for dinner, when SD was ready to be away from GD, she let us babysit and that usually happened at least once a week, and if we weren't available, they called DD. We all were able to develop a very close relationship with GD.
I guess my point is that you really cannot change this situation except through patience. She has made it pretty clear that she doesn't want a relationship with you, so don't push one. Be unfailingly polite and kind to her, but don't push her to allow you the access that you feel you deserve. The painful truth is that we grandparents don't have any rights except those given to us by the parents. We should be thankful for what we can get and make the best of what time we have with our grandchildren. Otherwise, we only make ourselves miserable and poison the time we do get with our grandchildren.