Me and my co sister usually get along.I have never asked her for help but helped her immensely at many occasions. I thought we got along until I realized something. I have seen her being appreciative of every other woman except for me. I am very much into fitness which many IL knows..but when I talk about it or try a new diet..I have seen her passive aggressively diss it off. She has a complex about her complexion,weight and height.I get surprised when she in 2021 still talks about fair complexion especially being in America for more than a decade and points out subtly that am dark. If I get a dark green nail polish..she will be like “it will suit fair people better”.. I have suffered my initial years with my kid (many things but now all is fine) but she usually says like “ You are atleast okay..it is so tough for me.your kid if grown up and am Working hard “.. She will never control her kid is the child is rude to mine and keep quiet. If my child complains to her directly about her kid,she will just say “please tell my husband dear”.. She is ready to appreciation to other woman and give their due for their hard work but with me it is Very different. Things like this happen.. Usually the above can be dissed off,not taken seriously etc but somehow get this feeling why she is being passive agressibe with me.It will look like She is not hurting you directly but feel there are some hidden meanings.. Is this toxic? Or is it common? Should I brush it off? Coz off late the relationships getting a bit sour and want to set it right before it gets worse..