My DD is 14 and always seems to be getting into some sort of friendship drama but it is always the same girl who causes the problems. This girl is lovely when you first know her so super confident and seems very mature beyond her years but she doesn't have the best set up at home and has spent quite alot of time at our house. I often feed her have to sleep over and have even provided lunch for her for school and taken her for days out with our family. She has got a little bit too comfortable becoming "part of our family". She is very intense and very manipulative and also very good at making you feel sorry for her. She dictates to my daughter about who she should talk too etc and always makes derogatory remarks about my DD's appearance. We had issues with her back in yr 7 and we decided going with and doing what she wants makes life easier for my DD as when you stand up to her she becomes extremely calm and collected and completely turns everything round to make her the victim and it has resulted twice in my DD getting in lots of trouble and being made to be the perpetrator. To cut a long story short I had to get involved as we don't want her at our house 24/7!! This girl loves to provoke a reaction by stirring and pushing my DD until she snaps -it got completely out of hand today and my DD started shouting and screaming abuse at her at school (no excuse!!) but now as happens every time she is the one it has backfired on. Every time I tell her not to go back but this girl always reels her back in and I always let her back in to our family life because I know she is craving normal family life. I am sure they will make up and if they do if I don't want to have her in our house again but if I don't everything will start up again. It feels like even I as a 40 something woman is being manipulated by a teenage girl. Any advice on how to approach this would be greatly appreciated.