Hi, I have a similar situation and it’s so hard. I’ve got a 9 year old son, and step daughters who are 11 and 15. I felt like I started to bond with three older one before teenage hormones hit and now I don’t have much of a relationship with her and the younger one is autism and struggles to bond with anyone. I know this is t my fault but it’s difficult not to feel down about it, I’m sad that we have bonded, feel frustrated that as they don’t respect me, and spend most of their time in their rooms when at our house so I don’t have the opportunity to get closer to them. My partner demonstrates a bit of the Disney dad as he’s desperate to spend more time with them and is scared they won’t ant to come any more. They are very close to mum and have refused to come over before 😕