I am someone who likes the house to themselves to relax without explaining or compromising with anyone. We live in a small house too.
DH has an arrangement at his work where he is supposed to work from home two days and in office three days. His work is fairly relaxed with arrangements. He often works from home four days a week, sometimes all days at home.
I am full-time and work from home four days and am in office one (I go in on one of DH’s work from home days). On the other days, we usually have a coffee in the morning and I usually make a quick lunch for us but outside of that we stay at our own ends of the house.
I prefer to have more space and feel claustrophobic when we are in the house so much together. Sometimes it can be almost two weeks at a time due to weekends, public holidays and me caring for DC when unwell (as they can’t go to childcare). By the end of that time I’m feeling hemmed in.
I have no solution. I’m fortunate DH and I do at least sit away for the workday and I go out for walks to break up the day.
When I was part-time, DH would choose to work from home on my day off. I quickly went back full-time after that. Being in the house together when it was my day to myself was hard. I couldn’t turn on a movie and eat snacks for example to unwind. DH likes to comment on things and with him sitting close by, I didn’t feel like I could enjoy myself.