Zorro, the children are 3 & 6 years old ( three and a half and just turned six, to be eaxact); one is in her second year of primary school, the other will start school - rather young cos she's summer born - next September.
I think I've inadvertently given an inaccurate picture of what my DD & SIL do at the weekends: they are not busy with their own social lives to the exclusion of their children - they are getting together with friends, some old some new, who also have children and thus maintaining a lovely friendship group for themselves & all children. DH and I did the same as young parents. Obviously, though, this does not often include grandparents. Indeed, when DD & SIL want to go out without the children, that's great because we or the other grandma get to babysit, which both we & the children enjoy. The other thing which takes up their weekends is the endless round of birthday parties which all children seem to go to these day. (Now I sound like an old fogey!).
Because my daughter works full-time, it has suited her for grandparents to see something of the children during the working week, as she then knows that good contact is being maintained. This current nanny, however, never wanted this arrangement and is becoming more & more resistant. She has told me that it is more appropriate for children to see their grandparents & other family members at weekends and that I should take it up with my daughter if I feel that 30 minutes per fortnight with the little one means DH & I are not seeing enough of her. On the fortnightly visits the nanny allows 30-40 minutes with the youngest child before whisking her off out ('for her social life'), and DH & I then have the older child for another two and a half hours.
The reason for the particular falling out on Tuesday was because I was told by the nanny that the usual 30 minutes with the youngest child would not happen this week .. and when I asked the reason, I was given two different and equally spurious reasons for it. Unfortunately (and unwisely) I showed that I was unhappy about this and it led to her accusing me of being rude to her (in challenging her? Okay a bit crossly, I admit). And thus we have the present situation.