People with NT children coming at you with with NT suggestions about how to change the routine in a family where a child is autistic. Grrrr.
"just do this, just do that"
You can't possibly understand how wearing it is to have to defend what is an already difficult situation to people who don't know how routine driven some ASD children can be.
To say "create a new routine and she'll get used to it" is akin to climbing Everest at time when you don't have any extra energy to start that whole process.
Having been there done that and got the t-shirt, I understand OP's decision to just carry on as is, because rocking the boat is so traumatic it's easier just to keep going with what is working.
She's had to give up so much already. She knows one day her DC will be more flexible and more understanding. It will come OP.
it seems however her DH may not be fully on board with just how much she's given up to be the DC's full-time carer and how her continual sacrifices eases his life and oils the wheels of his happiness.
It's not that she CAN'T it's that she doesn't want to, for the sake of her child, rock the boat. And for that level of sacrifice she expects to be backed up and supported by an equally sacrificial husband.
We had the same dynamic and still do. DH doesn't do any of the nurturing (he's on the spectrum himself) and I do all the picking up of emotions and putting the kids back together. I am their rock.
I would be so angry if he announced he was flouncing off to have fun for a week when DC was 5 and I had a toddler. Absolutely no fucking way.
I'd be inclined to storm off to a hotel for 2 days alone and see how he felt when I got back.
Yes it would be traumatic for your DC but in the end, it seems like he is the one that needs to grow up.
Taht said I couldn't have done it myself but for other reasons, I did storm off to my parents for 2 weeks... taking the children with me and refused to come back...until....
You have to find out what triggers him and use it I'm afraid until he sees sense.