I was watching the whole day an event on TV yesterday in the living room with me and my sister's husband and we were amicable to each other
We are polite and nice to each other and we are both in our early 30s
As he walked in from work I greeted him politely again
Minutes and moments later I met him at the landing upstairs, I said "you can go downstairs to watch TV if you want" "I'll be in my room"
He said "oh ok"
Is this ok? Or is it considered rude and neglectful?