(First Post) I've been heavily involved in my Stepson's life for about 6 years. Our family has joint custody with SS's Biological father. His Biological Dad is respectful to me but makes decisions for his son that make me often very uncomfortable. For example- he often tells his son that when he is a teenager his parents will "unown" him and SS can choose where to live. BF recently threw away his son's antibiotics because he doesn't believe in medicine. I feel powerless and find myself ruminating on this excessively throughout the day. I often feel very nervous for the future worrying about BF trying to manipulate SS out of our lives and the decisions BF makes. Any advice on how to cope with this would be much appreciated. Thank you.