If you are curious on whether or not to watch this drama, don't go on other people's negative comments because people are impatient these days so try it out for yourselves. I waited a long time for this and read part of the novel. Of course everyone should expect by now that not all tv series go step by step like the novel... you have to have room for your own creativity as a team so go in watching this not expecting it to be exact same as the novel 100% and by the way, YCY is doing decent job so far so definitely give it a go if you are curious. FYI, their 2nd life (1st in novel) just ended so hopefully things will start to pick up.
The ending where he walks past her...(and her heartbreak) I'm sure he's just putting up a front in front of others to show he wasn't affected by love but indeed he was.
you can watch the teasers and episodes on iqiyi. if you have vip, you can watch upto 10 episodes as of now but some websites have uploaded episodes on their site . You can try dramacool or kisskh.