I have one younger sister and an older brother. In 2004 my mother was diagnosed with Multiple Sclerosis and out of the three of us I was the one who decided to be her care giver. Anyway ever since I can remember my sister has had a chip on her shoulder. She has always put associates, friends, and boyfriends before her family.  She acts as if somebody owes her something, and she makes it really hard to talk to her about almost anything. I have tried on several different occasions to find out what the real problem is. Which goes back to my mother, who has always done her best by us. We may not have had what we wanted sometimes, but we always had what we needed!  She rarely calls to check on our mother, and she doesn't offer her any help. And when she does call it seems like it's only to ask for something to benefit herself. Not to mention that she lives with a sorry excuse of a man who acts as if she's disposable.  I can no longer allow her to hurt my mothers feelings, so think it's just best to leave her alone. I just wish she would think about the pressure I'm under being  a single mom, raising my nephew and being my mothers care giver. Leaving it in Gods hands until..