I like the point you make emsyj and purpleroses about those being the people she meets at work.
So as to the question of whether I like her, I can say that I don't really like her as an Au Pair. She is very forceful saying things like: 'I have arranged for x or y, that's ok isn't it', making it really hard to say 'well actually, that isn't ok' without coming across as petty or unreasonable. She is also not very interested in small children, which she has admitted herself. So she fills her days with coffee mornings and hanging out at the mum's houses and drags my son along. If she had been my colleague at work on the other hand I think I would have liked her a lot. She is sociable, enthusiastic and easy to talk to. I hope that makes sense...
So the other mums being people she has met at work is a good point, although she does put my in very awkward positions by agreing to things before checking them with me or my husband meaning that I am put in a position where I either have to tell her 'no' without knowing how she will then convey this message to the mums, or that I have to go along with something I don't agree with. I also have a lot of mums coming up to me saying how wonderful she is and as she is friends with some of them I feel like I can't really tell them about the issues we are having so I basically smile and shut up.
The school is a very small school so all the mums know each other. She does arrange to meet them for drinks, have dinner together etc. outside of her working hours. I haven't really spoken about this with any of them because they think she is absolutly wonderful and I don't like badmouthing people (outside of the sanctuary of online anymousity of course :).
I also feel uncomfortable about calling people she is friends with as I wouldn't ever expect my boss to call my friends. She has also befriended a friend of mine not related to the school (our daughters went to playgroup together and were best friends). I had introduced them thinking it would be nice for my daughter and her daughter to see more of each other. This friend now doesn't reply to my calls anymore nor does she call me. To me that either means that the AP is badmouthing me, though I am not sure what that would be about or that she wasn't as good a friend as I thought in the first place. Either way, the result is that I no longer hear from her.
It could well be that I am being paranoid but what I do know is that I feel very stressed by this situation. I understand I can't dictate who she befriends but I had expected a little more professionalism and respect for me to be honest.
So tell me, am I really being paranoid and if so, how do I get over this so that I can relax and enjoy the time I have with the kids?