I went back to school last year and I definately know what you mean about balancing studies with everything else. I have a problem that you don't, I have horrible self discipline. So my master added my studies to the things I do for him that he keeps track of. He asks me if I studied the pre-agreed amount of time, and if I haven't I get punsihed. Even though you seem to have the self discipline to study on your own, maybe you could involve your mistress in a similar way and she would feel less left out.