It's interesting to read the comments here since to me yangs feelings for yuu are pretty obvious. The way he conveys his affection is in Chinese, but I guess it's understandable that Yuu or ppl who don't know the language would have a disconnect.
Idk there's something incredibly sweet to me that someone slips into their native language to convey their affection. but of course it doesn't really work if it doesn't get across so Im glad yang is conscious of it and trying to work on it
I do think it'll be brought up later on, but they really need to talk through some the stuff he says ch3 about filthy, creepy place and what kinda neighborhood it is I just hope she doesn't feel ashamed of her living situation anymore