they were advil so, just rule out anything about addiction. it's a mere extension of roman just wanting/using logan's most intimate (read: body-related) material possessions when roman misses him and worries he will never return. we first saw this in s1e2 with the sweater and arguably, with that non-diet coke. now, we have roman downing those advil, the cigar (re: you wanna suck my dick; you just wanna give him a blowjob so, stop projecting) and maybe even another sweater. we also got roman leaving his own jacket with logan's corpse. it's like a form of indirect physical affection but, since this is entirely about logan's death, it's specifically affection through consuming logan's remains or rather, his waste. this ties in with roman's offers to consume logan's waste, his excess emotion e.g., "do you have someone you can talk to about... shit?" this behaviour extends to eduard (beer), mencken (coke, which is also his father's waste), and matsson (piss, no swallowing). within the text, bodily excrements are symbolic of emotion but where cum is productive because it contains the potential for life, piss is pure waste. roman, however, sees no difference because he can't be impregnated nor can he impregnate so, his body becomes, as i described, a sewer of sorts, a libidinal sewer. roman likes to have these "useless" emotions directed at him because to roman, it's emotion that's mostly untainted by liberal capitalism. it's sort of representative of roman's relationship to the feminine sexual role: he "enjoys" (not sure how else to phrase this) something that most around him regard as "filth" and yet, he is also ashamed of this because of how this marks him as "perverted" or "sick."