Highly annoyed

I think it’s definitely a good idea to read a little further and see what caused him to act this way, wanting to be alone and not allowing someone else to take care of him.

you're forgetting that Beom isolated himself due to factors such as his trauma from his younger days and that old geezer with streaming. He isn't intentionally trying to hurt Dowon; he's had no role model in his entire life and doesn't know what to do. He's only 24. I forgot which chapter it was, but Dowon says that, "just up until a few weeks ago, you couldn't even say thank you... who made you this way?". Down acknowledges that Beom isn't this way by choice; he just happens to have his guard up from past experiences. Not sure where you are in the story, but I don't think you managed to get that far that reveals Beom's past