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Really struggling with DSD (17)

10 replies

MyGhastIsFlabbered · 03/11/2026 00:38

DH and I have been married for 5 years. DSD has lived with him since she was 3, she is now 17. She has autism and her behaviour has always been a bit questionable but DH shrugs it off as ‘it is what it is’.
I have two DCs of a similar age and they used to get on really well.

but recently I have been struggling more with DSD. I’d put the behaviour down to being a stroppy teen but I honestly don’t know how much more I can take. This is going to sound awful, but she stims, a lot, and it’s noisy. Sometimes it wakes me up at night. I know she can’t help it, but we’ve been away this week and it’s been worse/more noticeable than ever.

she’s incredibly rude and stroppy, she swears all the time. And her table manners are atrocious but I get told not to have a go at her when I mention it.

there has always seemed to be one rule for her and one for my DCs and it’s just getting worse. My DCs are noticing it and growing resentful. She’s incredibly rude to them too and although I tell her off it continues.

the final straw was today I got bitten by a wild animal. It drew blood and was really painful. She laughed and told me ‘serves you right’ and then complained when I said I thought I might have to go to the hospital. (We’re away from the UK right now).

i just feel like I’m struggling to hide my dislike/annoyance now and I don’t want to turn into the evil stepmother. But I don’t know if this is the final straw in an already very fraught relationship.

OP posts:
BibbityBoppityTwo · 03/11/2026 00:47

My DD is autistic and can be incredibly, incessantly rude. It’s insufferable and I won’t stand for it, personally. There can be things that are harder for autistic kids, including managing emotions, but there’s no excuse for constant rudeness and I know I’m not doing her any favours by letting her get away with treating everyone around her poorly.

I don’t know what you do about this, though, when she’s your SD. Also, at 17 I wonder if it’s too late for the sort of consequences that will instil the importance of controlling her behaviour in her. With my daughter we had to start removing privileges when she started up with that behaviour. It’s not my preferred way of parenting but it was the only thing she understood and responded to when it came to the rudeness. We started it much younger, though.

CostcoFanofThree · 03/11/2026 00:51

Leave with your two DD’s.

Mistachio · 03/11/2026 00:53

Leave. Your DDs didnt ask for this.

PotentialPartTimer · 03/11/2026 01:01

The problem really is DH rather than DSD though isn't it? He's refusing to parent her or address the behaviour. Might be time to split households and revisit cohabitation when (if) the kids have all left home.

MyGhastIsFlabbered · 03/11/2026 13:24

It’s my house, so I won’t be leaving. I’m genuinely concerned about behaving horribly to her when it’s not 100% her fault but I’ve never been able to address the issues.

I just wanted to check I wasn’t overreacting about the animal bite as it really pissed me off on top
of already being pissed off

OP posts:
Alaskar · 04/11/2026 11:14

What’s the plan for her, post 18?

This was an increasing issue for me as a stepparent. I was happy to support SC as children, but I knew I wouldn’t be comfortable living with them and supporting them indefinitely as adults, as is increasingly common for young people.

wheredidtheteago · 04/11/2026 11:28

Autistic kids can be told what is right and wrong behaviour. Her father needs to step up.

Supersimkin7 · 04/11/2026 11:31

You sound very supportive to me OP.

No one would like being bitten then insulted, awful for you.

I’d talk to DP and make it clear how hurt you are by DSD’s rudeness and how vulnerable your position is on the bum end of her moods. He should acknowledge autism isn’t a free pass to insult anyone, let alone dsd’s caregivers.

DP should be sympathetic and understand that compassion applies to everyone, not just dsd.

Explain it’s not a duel between yours and her needs, you’ve both got needs because you’re both humans.

Don’t bring the double behavioural standard for his and your DC in yet - that’s a different conversation.

Hope your bite gets better soon. 💐

MostlyHappyMummy · 04/11/2026 11:38

Isn't your house a martial asset if you're married?
And a general comment which seems to apply to half the threads on Mumsnet - why do people insist on living together when kids are involved. So unfair on the children

CostcoFanofThree · 04/11/2026 16:12

If it’s your house (properly ring fenced) then tell him to leave with his DD.

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