ugh i hate myself for falling again with another second lead syndrome ╥﹏╥ whyyy

I can relate. I think it's cause second leads are much nicer and they can't ever win because the main lead is richer and they are asshole so it leaves a big impression on the mc

I just read the raws and turns out SML already has kinda a lover or a clingy actor colleague/friend and our monkey/MC doesn't have any romantic feelings for the SML.

He is not really a second lead, he is already taken. Btw. you can read this series up to chapter 80 on WeComics.