I'm Shondo

Who are you?

I’m Shondo.

You were lucky your husband finally decided to step up and take care of you like you always wanted.
He met your family and had been very kind to them. He was such a sweetheart. He bought a house just for you and your loved ones. It took months for him to change your mothers mind, but she came around eventually.
Now all of you lived in a huge mansion in rural Scotland. Everyone had their own room. 2 Kitchens, 4 bathrooms, 2 balconies, a living room big enough to contain your entire old floorplan.
Your husband is very busy to keep all of you fed. When he comes home in the evening he has no energy to talk and play with you all. As such, you and him have your own quarters, segregated away from the rest of the house except for one door. Each evening, when he is relaxing on the couch, you keep him company and cuddle with him while both of you watch anime. You’re currently on your Monogatari rewatch in preparation for the upcoming off-season.
He’s very understanding of your hobby. So you excuse yourself on most days after a while to stream. If he hasn’t already fallen asleep after you wrap it up, he visits your room and reads you a little. You’re currently halfway through with Lolita. After storytime, he kisses your cheek and you make him a lap pilllow. Then you just talk. About the hardships, about your days, anything, really. Often, both of you feel tired after a few dozen minutes, but sometimes, the talking commences for uncountable hours. Especially on fridays. Then you kiss each others foreheads and part ways. He is very respectful when it comes to space. But he expects you to accept his boundaries as well. Sometimes you try to surprise him and sneak into his bedroom to cuddle for a little while on a workday. Then he gives you a slap and talks about catching sleep because he needs to provide. You understand, but sometimes you just can’t help yourself, because he reciprocates once in a while, especially when he had a hard day. Sometimes he even cries. You’ve gotten better in sniffing these opportunities out.
On the weekend, you and him usually spend one day with the family, and one day with just each other. Whenever you suggest to switch it up a little, he gets very scary.

It is saturday night, after both of you had dinner with your family, you sit on your bed, your husband in your lap. Earlier that day, your little brother invited you to play video games with him tomorrow.

What do you do?

Bring it up.
Ask your otouto to reschedule tomorrow.