Sounds to me like you’re blowing things way out of proportion.
Could’ve been worse, you could have been in my step-Dad’s shoes.
My Mum left my Dad when I was 3 years old, My step-Dad has been around since I was almost 6. I have an older sister (24) and an older brother (26)
Not once did he threaten to leave my Mum over the fact I was basically a ‘devil’ child haha, He stuck around whilst I constantly got myself into trouble, in and out of school, which eventually ended up with me being permanently excluded from school in year 9 and doing home tuition, which I never did. Fair few home calls from the police and even being arrested when I was 15 for fighting and using a weapon (One of the most stupid things I did) Always supported my Mum whilst I was going through tests for ADHD. Basically I was a proper little c*nt.
The best thing my Mum ever did was leave my Dad and marry my step-Dad. Does your partner support you and give you ‘rights’ to tell the daughter what’s what and so on? Does she agree with your thoughts?
I really can’t imagine it’s ‘THAT’ bad…
I now work with my Step-Dad but he still thinks I’m a w*nker 😉