Separated from grandchildren
Welcome to the Forum. This place is full of friendly, caring and supportive people.
I am so sorry about being separated from your daughter and your grandchildren.
The fact you have been extremely close with your daughter up until recently, must make having no contact now very distressing.
There is another thread you may like to read Topic: Estrangement from both my adult daughters , where you maybe able relate to what writer of the thread has written. Just type the topic into the search box and the top of the page.
I understand this is difficult for you and I hope reading about how other people cope maybe of help.
Your situation alas is not uncommon on this forum.
Yes agreed, a very tough time.
Often our children build up emotions and the slightest disagreement finds them cutting contact over many little things rather than the topic at the time. I'm guessing of course.
Again guessing, but she might have taken exception to the phrase "being used". If she didn't feel she was using you eg taking advantage of your assistance, then this can come across as being abrasive.
I suggest, no matter how hard this period is that to feel abandoned is a little too early to be. time heals often and being without your grandchild in your life for 12 months or so is like being without her/him while you do an overseas trip or round Australia trip.
I say, honour your daughters right to space and time away.