We spend time in a room together, or in the house together, but probably not that much time actually communicating unless we are out somewhere.
Normally he likes to be alone in the morning to have some time to himself before work. So he gets up early and does his thing, then he wakes me up with a hug when he is about to leave, and we say goodbye.
He leaves at 0830 and gets back around 2030 most nights. It's a walking commute, so that's all time spent in the office for him. If he gets back earlier it's because he is going to do sport (maybe twice a week during the week).
When he gets back we normally have a chat as I am doing stuff, he talks about his day and vice versa, or we chat about random things. Then I will cook dinner whilst he chills on the sofa or does some organisational stuff for the house (I'm happy with this as I love cooking). While dinner is in the oven we will both be on our computers, but every few minutes say something to the other and have a little chat, then go back to what we were doing. At dinner we will chat about random stuff, then he will clear the table and I will wash up. We then watch things together on tv and have a little commentary between us, or chat about things that need doing. Then bed.
Sometimes when he gets back I am doing laundery, or doing sport, or on the phone, so we won't chat until I'm done.
We don't have children, so that's a huge difference. I think though, generally, it's a very personal thing about how much time you spend actively engaging with each other. We both like to have time to have our own space and do our own little thing, but we don't exclude the other whilst doing it (as a poster mentioned above getting told they were "interrupting").
I find it a strange reason for your DH to give, unless yo were actively shutting yourself away from him, or refusing to engage at all.