Yeah, I expected at least 40 chapters at first but looking at chapter 25
Spoilers
How Seungjae is already regretting what he did and seems to be fully aware of his shitty behavior, it's possible to wrap the story up in the next few chapters. The only thing I'm missing in this scenario is that I will probably be left with a very uneasy feeling (if we don't see them overcome any problems without Seungjae turning abusive again how can I think of this relationship as healthy? I need at least some kind of conformation that the seme is really trying to better himself.).
Or maybe that's how we're supposed to feel. In that case it makes perfectly sense to end the story at this point.
I thought things would be more complicated and will take a wild turn in the future but Cover up has come to an end at Chapter 30!!! too short but too good