This is a weird suggestion, but it's one I thought about. When you own the doughnut shop, it's great starting off, it really is! I would like to suggest a way to pay workers more than the wage, which would maybe offer a passive affection bonus, or maybe a flat rate bonus that changes with each increase of money. And also, maybe a way to hire more than 3 total? I'm no coder, not by a long shot, so I'm not sure how hard it is. But maybe a way to have even just 4 or 5 workers as well?
Great game btw! Even without the weight gain elements, it's a quite exceptional dating game!