He's the big brother, the provider of the house, and he's living in Sooha house for free, with no employment. Now that his hand is broken he cant even cook/clean properly. He feels useless. He feels like he doesn't deserve Sooha, who is so capable and giving. Its not about whether he loves Sooha, its about whether he can find his identity and self worth again.
Plot is basically, I quit my job so I could to the capital to hunt for dicks I like. Uke's mindset is a mood
be work-free , but dick-full