They love each other
But juheon have some trauma and have shitty family, it seems like his family will hurt Dohu too
Juheon get scared when his aunt know about Dohu
He run away think that he will hurt Dohu more, and he also doesn't want Dohu to hurt him because he's unsure if Dohu even see him as a lover
You know those people IRL who hard to love because of their trauma, Juheon is the same

After they first broke up I stopped paying attention so I’m confused on what’s going on do they even like each other?