I work fulltime, he's doing a Masters and works 2 days.
We spend a couple of nights a week 'deliberately' together - i.e. we choose to watch a film or go out for tea or whatever intentionally. The rest we might spend together or we might not, it depends what's going on. A lot of evenings I play games downstairs and he plays upstairs and just give each other a passing kiss when one of us is going for a wee.
We also have things that we like doing as quality time: when he's in the bath, I take a brew and we sit and talk. Or we like to go for a drive. Or we go camping etc.
We don't really argue - we bicker occasionally, but very rarely about anything big because we're very similar in our views and plans for our life together. If we do have a 'big' argument, maybe once a year, one of us will go out and we'll both calm down before we talk about it.
I think our biggest plus is that we talk, all the time. About politics or our lives before we met or our plans for the future or what's in the news....as well as the silly little day to day stuff - he will call me on his way from uni even though he's going to see me two hours later, because we just like to talk. As a result we know each other very, very well. Our biggest 'negative' (we don't see it as such, but I can see why some people would!) is that we can be quite insular together - we probably see friends once a week so we're not hermits, but we're both happiest at home with just us.
He struggled a bit in the last year with me working full time and then doing consulting work on top, so I was working 65 hour weeks. But we talked about it and I dropped a couple of clients because he could see it was making me stressed and I was becoming pretty shit company. Is it possible for you to have that kind of conversation with him?