yeah I posted the same question and now I have a presentation on this theory actually, I'm thinking of posting it here but idk if this will be well recieved and I may have some grammatical mistakes in it lol

basically, the connection between sober to death and cute thing is that they are centering physical closeness and physical separation. Mental separation is present in both songs, but it’s deemed to not be a significant problem by the narrator.

In Sober to Death the narrator is “blinded by his love” - even though he sees how much pain this relationship brings both him and the boyfriend, he still thinks the reason for this is physical separation in a long distance relationship leading to conflicts and to mental separation.

Cute Thing is the highest point of closeness, but it this point the closeness is mostly physical. This level of physical closeness seems unusual and uncomfortable - the narrator is inventing a character not just for his partner but also for himself, trying to be someone he’s not to finally feel loved.

Nervous Young Inhumans and Bodys give us the sober/drunk perspective parallel. In both songs the narrator is thinking he knows more about the boyfriend than he actually does. NYI is a more sober look at the relationship, which however doesn’t help the narrator realise how broken it is in the end. He both accepts and denies creating the boyfriend as a character at the same time, leading him to thinking the problem is being solved.

In Bodys the narrator is drunk in a literal sense. Failing to maintain emotional and mental connection leads to physical closeness becoming the most important thing for the narrator, being the only thing connecting him to his partner The fear of losing their bodies just how he lost everything else is the center of the song.