Just that really if her sister goes anywhere near me or her she screams her head off. DD1 is very patient with it and tried her best to interact with her and backs off quickly without a fuss when she kicks off. DD2 plays really well with every other child of any age or gender.
Any advice on how to improve things? DD1 often asks why her sister doesnt like her and that she wants to be friends. It breaks my heart as all she ever went on about before we had her was how she wanted a sister.