What Ghostfuckers shows us about Blitzø, his face scar and eye trauma, and his deepest fears.
As we already know, Blitzø's scars come from the same accident that maimed Fizz, killed Blitzø's mom, and burned Blitzø's life as he knew it to ashes. We also know Blitzø blames himself for the accident, because he inadvertently caused it by pushing aside the imp carrying Fizz's cake.
In Oops, we also saw Blitzø's eye got badly hurt during the accident.
And, even though it seems to have fully recovered given his precision with a gun, it is still permanently and completely surrounded by scar tissue.
It's his most visible scar—the only one he cannot cover up with his daily attire. It represents his vulnerability and broadcasts it to the world. So much so that, when he's feeling at his most helpless, he shields it from view as a means to protect himself.
Eyes are typically represented in fiction as windows to the soul, so one's eye being hurt or scarred can be a representation of how broken, hurt, or tainted they are/feel inside; an unclosable window that displays their deepest trauma for everyone to see.
We also know Blitzø privately crosses out his face in pictures with his loved ones, and we've seen across multiple episodes that the side of his face that is highlighted in each scene can relate to his emotional state. His scarred side is in full view in moments when he's losing control of his emotional state and unable to hide his vulnerability, whereas his unscarred side will be in view when he's trying to avoid/hide his insecurities and pretend everything is fine. On key moments when he's being honest with himself and others about his emotions, his front side will show, a representation of him acknowledging both sides and approaching a balance between them.
In Ghost Fuckers, eye trauma is also used to represent Blitzø's emotional turmoil, except the eye trauma is no longer his own—it is very blatantly extended to others.
In his Millie hallucination, every single Millie except for the one with the broken arm has got something wrong with one or both of her eyes. Each of them is the realization of Millie being hurt because Blitzø put her in harm's way: the bottle shards from Murder Family, the fire in Loo Loo Land, the giant fish from Spring Broken, the angelic arrow in CHERUBS, and the final Millie, which seems to match the hotel bellboy, implying Rolando has hurt or affected her in some way.
(Notice how Blitzø's scarred side is showing again in this moment).
All these Millies have been ruined in the same way Blitzø is ruined, and they've been ruined because of Blitzø. Because he needed her. Because he put her in harm's way. Because he cared about her enough to selfishly keep her in his life.
All of these Millies have ended up "like him": permanently marked as broken.
This is what his love does, in his eyes (pun not intended). It damages people beyond repair. It is a contagious and unstoppable force that will inevitably destroy anything and anyone it—he—touches.
Just like it did his mother.
She, too, loses an eye in his hallucination. An eye that falls right in his hand as she burns away, marking him as responsible for her corruption; an eye that looks at him even as she vanishes from his grasp. Almost as if she knows. Knows what he did, knows he's to blame for her death. Knows that if it weren't for him, and his feelings, and his love, she'd still be whole. She'd still be alive.
This masterful visual representation of Blitzø's guilt and fear is perfectly summarised in Millie's line, “when was the last time you loved someone without hurting them?” Blitzø truly believes anyone who stays close to him will end up just like him: damaged, and traumatised, and broken, or worse—dead.
And all because he was selfish enough to let himself be loved and cared for by them.