Last year my ex passed away. My child has had an excellent relationship with their stepparent and that has continued. I did not see the point in my child losing two important people in their life, so we maintained the childcare schedule. Now that time has passed the stepparent still wants to be actively involved and responsible for all aspects of my child's life. I am ready to start de-escalating their relationship but am unsure how to go about it. They are still grieving and I don't want to cause more pain, but I do not want to raise my child with this person for the rest of my life. For context, my child has SN and will need lifelong care. All advice and perspectives are welcome, even if you don't agree.