Yeah I dont like those kinds of cliches at all 😔
I did do a whole twt thread, but so far I think Taeuk will disappear in time to not be seen by Cheol if he does come back again (I'm hoping for that), or by anyone else coz I think it's more likely that instead of Cheol, the first to find Miae after that cliffhanger will be her school friends gang (Yunhui, Jiseon, Jihye), or maybe even Yonghui first then the gang and that will lead to another chaos.
There's several possibilities I can think of there, but I dont think Taeuk will be around long enough for Cheol or anyone who will recognise him to show up, coz with how he showed up in front of Miae when she was all alone means he plans to do smth with Miae when she's alone and isolated, and I doubt those would be good. For that, he wouldnt want Miae to know his real identity or for Cheol to find out either, esp coz I believe Taeuk's plan is a long and quiet one he plans to do behind the scenes, and later drop a bigger bomb. Hence, why I also think Miae will be safe from any immediate harm from Taeuk for now.
Soonkki will most likely focus on the problem that has grown badly in Miae and Cheol's relationship (also Miae's Yunhui-Yonghui drama), and then move to Taeuk's plot.