Responses
I agree. I really wish he'd talk about it. I can understand why he wouldn't want to open up to Garam, though. It's never easy to show your deepest fears and vulnerabilities to the person you love. But I do wish he'd at least talk to a therapist or a counsellor instead of carrying all that guilt by himself.

Guilt and regret don't let go of you that easily. I feel like the manager's silhouette is a visual representation of Heejae's guilt and fear of loss. The manager was someone who genuinely cared about Heejae, yet they ended up parting on bad terms, and he died before they could ever reconcile. Ever since then, Heejae seems to see the manager's silhouette whenever he's sharing his happiest and most intimate moments with Garam. To me, it's his guilt reminding him that he is a knife, someone who inevitably hurts the people who get close to him. It's as if he's terrified that history will repeat itself, that Garam will leave him too, and there won't be another chance to make things right.