My daughter aged 13 has a big group of friends, generally speaking they are a lovely bunch of kids. Within this she has one best friend called Ann, her and Ann have been really close for years. Since starting secondary school they have become friends with Lisa all bumbled along nicely for a bit then Lisa started sidelining my daughter and become possessive and at time a little strange towards Ann. Ann over time has become more and more friendly with Lisa, where Lisa can be a bit mean towards
My daughter. (Its all a little strange tbh)
The dynamics have slowly changed around the girls and the whole group in general.
Fast forward to now.. Ann told my daughter something in confidence, it's only a minor thing but asked her not to repeat it. Lisa asked my daughter about it implying she know and through time my daughter ended up agreeing/going along with it.
Several of the girls found out i think through Lisa who told them. Ann has been going off crying, missing school and blaiming my daughter for going around telling everyone.
My daughter is devastated. I think it would be best to keep away from both these girls even Ann, its just not worth it.
I think these kind of things are going to continue because of the strange dynamics and its just becoming toxic.
What would you do in this situation? How would you advice her?