She will pout and burst into tears if she doesn't get first go or what she wants. This is her best friend and they spend lots of time together. Friend is a little darling and just wants dd1 to be happy, she either lets her have her way or offers a really creative suggestion as to how else they can play.
Her mum (lovely woman) and I were talking about it the other day and she commented that my dd had 'the upper hand' in the relationship. I said I didn't like dd's behaviour much and feel she's abusing the friend's good nature.
At leaving time dd went into a massive strop and then refused to say thank you or goodbye.
She's not like this with other friends. She's much more democratic and generous.
Everyone finds a scapegoat eh 
Just looking for tips about how to engage her in nicer sharing next playdate.