Ahh, so sad. She wasn't even interested in power, just wants belonging, and he'll only provide her that on a transactional basis. How depressing.
I hope he mellows out a bit, eventually (obviously not happening anytime soon), given that there's almost no way this ends with her just dumping him, as a healthy person would. And, that this isn't going to just be korean-drama maximum-angst the whole bloody way...