10 year old DD does not get along with 9 year old DS. Odd time where they play nicely but generally she isn't fussed about him and is "sick of him." He just wants her to love him.
When they are being horrible to each other, telling tales, etc I try the ignore the bad advice. This leads to DD telling me I obviously prefer DS as I never tell him off or do anything about his behaviour.
I really hate being told what to do by my daughter. I am trying to follow the advice given but have also done the telling off but neither works.