Livre d'Or

That can be awkward, we have the same problem. I tend to either ask or go with whichever of partner-they-live-with or partner-I-know-best is most appropriate. I don't remember the last time I was invited to a small dinner by anyone other than partners. Bigger parties, we all tend to be invited anyway.

I think that's more because I tend not to want to socialise without the children, certainly for parties, but it's actually easier to socialise now because we can be divided into pairs in any direction, so leaving a parent at home with the children if that's necessary/desirable.