I am actually living the scene you have thought about.My long ago ex husband,who was an absent,abusive, useless being 30 years ago,is now the hero.And you know what,I am more than happy about it.I remarried 25 years ago and then relocated overseas,not too far though,with our children.Forward 15 years and after a really hard relationship ending,said daughter needed to get away and moved in with her Father and his current girlfriend.She went on to meet a local man and now has 2 beautiful babies.Yes I wished we weren't an ocean apart but I have been so thankful that she has her Dad so close by to be there for her if she needs,and she has needed him.When the 1st little one was born I did have pangs of jealousy and worried that she wouldn't know us or be as close as she is with the other grandparents.But honestly that has never been a problem.The children know us so well and we have a wonderful bond.Please dont worry about what might be.Id never have imagined my daughter having children apart from us,but she did and its ok.I always tell myself "thankfully she didnt move to Australia" like some of my friends children have!