Dear Steve and Shirley, I am a 50 year old with 3 children and I have been married for 14 years. All of the children are grown and are on their own, so my husband and I have the house to ourselves. I love my alone time with my husband, but his sister is causing big problems in our marriage. His sister gets on my last nerve. She is an unstable mother and she drops her kids off at my house with no warning.............