It’s great that you feel good about your decision @Boundaryqueen1 but the way you talk about DSD shows that you have no love or respect for her.
Yes, her behaviour sounds dreadful but I have to wonder about your behaviour towards to her.
My mother died many years ago, in fact, 51 years ago.
My father married a woman who, at best, I can call dreadful but in honesty, she was verbally, physically, mentally, emotionally, and psychologically abusive.
And when I say physically abusive, I don’t mean a smack on the bum when naughty, but things like punching me on the face repeatedly when I was 11 because I forgot to put the rubbish out, hitting me with the buckle end of her belt for some reason I forget now and my earliest memory of her was when she made eat my own vomit on my 5th birthday.
My father never allowed her to have children and she used to beat me for that too, saying that if I wasn’t around, she could have her own kids. She completely destroyed my relationship with my father and even now, I am still in counselling because of what she did.
So yes, you tell stepparents to have boundaries but please tell me how a 5 year old deserves to have to eat her own vomit on her birthday?
A person’s earliest experiences shapes them forever and everything that happens after traumatic experiences is informed by those experiences.
That woman left a trail of destruction that has carved a path through my own life.
If your DSD could post on here, I wonder what she would say? Because throughout my life, I’ve learnt one thing - there’s your truth, their truth and the truth, which is usually in the middle of yours and theirs.
I am also a DSM and have a very close and loving relationship with my DSS’s.
Being a DSM doesn’t mean you have to “tolerate” your DSC but means you have to “parent” them - that is: love them, respect them, treat them with kindness and be there for them.
My DSS’s BM tried for years (and still does on the odd occasions that she has contact with them) to emotionally manipulate them and turn them against me.
My behaviour towards them showed them that what their BM said was complete BS. Because I treated them like my own, I loved them, was kind to them, I never shouted at them - I never shouted at my own DC either, I never nagged them, but I talked to them and used gentle parenting techniques. I didn’t even know it was called that until I saw a TikTok video of a woman with her kids, where she was practising it.
Rather than posting a vitriolic and bitter comment about how awful your DSD is, perhaps you should look to yourself for your contribution to how she interacts with you and how she has turned out?