I've been thinking about this scene all day, the one scene where we see 32-year-old Rust in a "humanized" way, something casual. Talking to Maggie about "getting better" because she doesn't see how the way he is at the moment is an improvement over something else, but he knows he's better. He knows that the nightmares are less, the hallucinations are less, and he's not being used by people in ways he never once wanted to. Sure, he's still got a long way to go, but the life he's currently having is so much nicer than what he had for 4 years.
Obviously, I don't think he told Maggie about the horrors he faced while undercover (he barely told Marty), but when he says he thinks he's better, he's telling his truth. And while from the outside he's just one lonely man in a small apartment with nothing to his name, it's precisely what he needs. He doesn't trust people, not yet, but he's healing in his own way and at his own pace.
Ice king is a really good character because they intoduce him and you're like "haha what a freak what's wrong with him" and then the show goes "oh! You want to know? Let me show you :)" and you end up just sitting there like
not "i ship these characters" or "i want them to bond platonically" but a secret 3rd thing (I want them to be forced to interact by the Narrative bc they would HATE that)
I love dunmeshi for the like.. built in horror of consumption. Like they eat to survive, they eat to honor their prey, they eat to possibly mourn someone. Laios eats monsters because he wants to learn more about the things he loves, Senshi eats monsters to feel included in the ecosystem because he didn't fit in with the outside and with most creatures in general, Chilchuck DOESN'T eat as much as he could because eating too much could kill all the party members, Marcille eats monsters and hates it but she still does it because she'll die before she could save Falin.