Responses
For me tho Eunho isnt dense, he is more like afraid to be more honest because Hyeon isnt reciprocating as forward as he needs to. "Needs to" because he needs a straight forward assurance and doesnt wanna risk the friendship they already have. Thats why he sees it more like a me problem than a Hyeon problem. Now what he is making Hyeon realize by leaving, is what is Eunho actually to him (friend or lover). Hyeon's action leans more to a lover than a friend (which Hyeon doesnt realize yet) which misleads or gave mixed signals to Eunho.
I fully agree on your second paragraph tho unn
Both characters are constantly contradicting themselves, but I suppose that's not necessarily unrealistic. Eunho is painfully dense to the point it's too unbelievable, but then again before my first reciprocated love I was dense af, too, and considering how Hyeon himself is clueless, too, I guess that's fair.
What I would really love though, (but I don't have much hope honestly), would be if they really do manage to come out with a much steadier, healthier relationship, than what would currently be possible in their current states. Without incredible amounts of codependency, constant anxiety and draining memtal health problems. I absolutely love the boundary that was set to seek professional help, because neither lovers nor friends can shoulder another's entire weight by themselves. It's a shame that so far the right kind of help hasn't been found yet - too realistic if you asked me, but I'd love to see them mature into a relationship where they realize there are more sustainable ways to be there for each other.