I don't know if you read the last part of my comments but just like I said, I don't think Ju-In likes dani, he doesn't seems to have a romantic feelings for dani 
Dan-I is just a mother figure to Ju-in and that explains his nickname for her "Mom" since you know that his stepmother doesn't even love him, and just used him and took advantage of his memory thing so yeah
As for yeodan and dan-i relationship, they broke up because yeodan thought that the idea of them dating is just him isolating dan-i from her friends, because they ignored dan-i for like 2 months so basically the one who stayed to dan-i this all time was lee ruda and yeoryeong (I don't know why there's no lee ruda's route 
) But yeah, I agreed. They're such a cute couple, I mean if yeodan is my neighbour.. I would always cook food then give it to them just to see him 
Yeodan really loves dan-I but he had to do what's best for her, it's such a shame they need to broke up.. So basically, Yeondan is a green flag (yall can't change my mind)
It is confirmed that the couples are 'Eun Jiho x Ham Dan-I and Kwon Eunhyung x Ban yeoryeong' I don't know for the others though..
If you're interested in reading the novel, here's the link: https://www.webnovel.com/book/the-law-of-webnovels_14009364006015205
instead of disagreeing with my comment, why don't you just recommend me some dark themed bl?
