Really stuck on how to navigate this. I have two children and my fiance has two children. We have been together for a long time since the children were all very young and all have a great relationship. My children don’t have a relationship with their father and see my fiance as a father figure. There have been times where my children have spoke about my fiance as their step-dad or dad and his children have been really upset about it. They don’t want to share their father and are really territorial about it which is completely understandable but I’m not sure how to keep all children happy and not have any of them upset. There’s a back story as to why my children don’t see their father and they are heartbroken about it so I think them wanting to call my fiance dad is a lot to do with feeling rejected by their own father. It’s really hard to see my children upset and they are too young to understand why things are the way that they are.