Dear Prudence,
I have been married to a wonderful guy for three years. He is good to my children and has four kids from two previous marriages. While I get along with the older ones, it seems that I can’t do the same with the younger ones—a 14-year-old boy and a 17-year-old girl who both live in another state. They don’t ever talk to my husband, not even on Father’s Day or his birthday. The girl is always trouble when she visits. She uses drugs and is always doing something to sabotage my marriage, like sending my husband pictures of her mom. She has called me really ugly and offensive names and never apologized. This year she called my husband after more than a year of not talking to him and says she wants to spend Christmas with us. My husband seems excited about it, but I can’t feel the same way. What do I do? Am I wrong for wanting to spend a nice Christmas without trouble? Do I just lock myself and my kids in a room when she is here? My husband won’t understand me because he says I have my kids with me, and no matter how bad a person she is, she is still his daughter.
—Soon-to-Be Ruined Christmas