One of the things I've noticed about most (if not all) Harvest Moon/Story of Seasons games is once you get married your spouse has no life. In a way its almost preferable to stay single and gaze from afar since once you marry them the only point they have is to make you lunches and watch your kid. Which is super 50s and NOT in the good way. I understand there's a lot going on in those games, and in Stardew Valley, but as everyone here is stressing...you picked that character because of their personality/what makes them...them. And if it just goes right out the window...well..shoot. Maybe there can be options for each of the characters, I don't know if people really age in Stardew but maybe a few of the characters could later work for an already existing shop as an assistant, and depending on what you do in your game they can later take the place over as owner while the previous character does something else. Or they have their own stand, or they join a nudist colony. Okay, maybe not the last one, but the general idea is that maybe there can be a base option that is slightly altered for each character. That way its less they all need a special snowflake job and more they're doing something. And hey! If that gets hella complex I'd be down for that being DLC if it ends up adding to the plot/giving things more depth.