Why does my mom only talks to me when am fine and happy?

don't hare yourself. your mom loves you she just dont know how she can express it to you. and she doesnt hate you. you said your parents got divorced. she just have the feeling that maybe you are angry at her for doing that. and thats why she is afraid to even talk to u. but when she sees you happy she is also happy. and maybe she only talks yo ur sister because she knew that ur sister can immidiately help you and ur family to live. and dont run away. you know how worry she will be if u run away. THERE'S NOT A SINGLE MOTHER IN THIS WORLD WHO HATES HER OWN CHILD. she is just having a hard time being th eonly person to take care of you and ur sister. but things will cool down evetualy. just have a talk with ur mom and try telling her that u are there for her. no matter what problems you can be facing tell her that u are there to help her and be there for her. your parents just got divorced. you must must make her feel like you still love her. help her do the chores or sit down with her at breakfast have a conversation. ur mom doesnt hate u she just finds it hard to be adjusted in the new environment you might be living now. so try to understand ur mom and i know she will never leave you. just hang on there and dont lose hope.