Woowon already feels discomfort over their wealth differences, I think if Seoan became his employer and responsible for his income, that'd probably make him feel more burdened and feel like a greater distance between the two of them because of the power dynamics for being boss and employee. Also Seoan's been going to therapy, so I don't think he'd make the offer to hire Woowon, I think he's working towards being able to manage his mental health problems on his own.