
It's just so bad cause the MC there had at least 2 people to lean on, while Dan only have JK. I'm going to be super honest, I think the only one doing the heavy lifting on the plot right now is JK. And he's doing a shitty job at it. Idk man, just ranting I guess. I feel like Author-nim just doesn't have the heart in it for Jinx.

He Tian left? When exactly? What chapter? The recent chapters had been confusing for my tiny brain...

The speculation is that He Tian left at the end of high school (looking at the recent chapter where He Tian found his school name tag that Little Mo kept) and the reason for him leaving was to go abroad to make a living for himself so he could return to Little Mo and provide for him (which is what we are seeing now is He tian has returned). There are no chapters that officially show him leaving. If the author decides to go into the past again, we might at some point see his departure, but potentially not.
I did not expect a High Definition Dick drawing, d'oh lol