After a bit of quick help please as want to speak with DD tonight...
Background info - DD is one of those children that never has a best friend as she just enjoys playing with anyone who will play with her. Also, DD is quite fickle and will play with quite a few different people all in one day and quite enjoys playing by herself. This is great on one hand but has caused some upset for her over the past few years with being left out of stuff that others are doing, her not feeling as if she is wanted/included as most other girls have 'best friends' etc.
Anyway, this year going into Year 3, I found out that there was a lovely little girl (lets call her Megan) that was going to be in her class (they swap the classes round every year) that my DD gets on well with at an out of school activity but had never been in the same class before so didn't play together much in school. Megan had also had problems in years 1&2 with friendships and both girls were nervous going in to Y3 so we met up with her and her mum over the summer holidays and they played at each others houses a few times. All seemed great and they were getting on really well, they were both much more relaxed about Y3 when they started back at school.
My DD mentioned last week that she doesn't play with Megan much any more as Megan never plays the games my DD wants to, never listens to my DD when she says this to her and then doesn't realise when my DD is upset at not being listened to (all DD's words). Unfortunately, my DD has a habit of deciding she wants to play with people but instead of going over and playing their game, she tries to make them all play a new game. This, of course, doesn't happen as DD would wish so she gets upset. Trying to look at it objectively, I thought this was what was happening with DD and Megan so spoke with her about this and that seemed to be the end of it.
However, after school today DD's teacher has told me that DD has written on the wall of the toilet cubicle "Dear (DD's name), I hate you, from Megan". This is very out of character for my DD. Teacher has said that she can't get much out of DD, but is concerned as it is so unlike her but says there are obviously some friendship issues going on here, so has asked me to try to find out more. I will definitely speak with her about it all as I want to get to the bottom of this, something is obviously bothering her that she thinks her friend hates her 
. But I am imagining how the conversation is going to go and I am sure my DD will say something along the lines of 'Megan doesn't want to play with me' or 'Megan plays with other people' etc. This is the part I am unsure how to handle? I am tempted to tell DD to stay away from her but I have had to do this before and I am worried that if I say this every time DD has a friendship problem, she will be left with no-one to play with. But don't want to encourage a friendship that is making DD unhappy?
So, if you've read this far (sorry for the mammoth post) how would you handle this?