declan clearly knows but keeps his thoughts on specifically ONLY this topic to himself for some reason (another thing i’ll have to digress about because Come On…) — would love to hear you digress about it bc I also see it. When I did my huge TRC/TD3 reread this year, that part in the dream thieves where Ronan throws his leg over Adam’s in the car and Declan has that facial reaction actually made me stop and think. When I had first read it centuries ago, I had always figured it had to do with the dreaming and that opinion was enforced by Declan’s POV in his CDTH chapters. However, the CDTH chapters also gave me new perspective about how it’s possible Declan could always Tell that it would be Adam for Ronan. In a way they are introduced as a unit (Declan and Adam being on the phone at the beginning of TRB vs when Gansey needs a battery and Ronan doesn’t want ANYWHERE near that conversation plus the goldmine of Adam’s first pov in TRB at Monmouth). Wrt dream thieves, despite their differences at this time in the series, siblings know siblings and I feel like he definitely was able to tell that Ronan had something more than platonic feelings for Adam. Maybe before Ronan even knew himself. He’s super distrusting of Adam from the beginning till CDTH (given we ignore the events of MI and GW). Even when it’s mentioned that Adam is every bit in love with Ronan as Ronan is with him and Declan can SEE it with his own eyes. This could also be talked about with Kavinsky but my hands will fall off if I type any more rn.
I don’t even know if this makes any sense bc i’ve been driving for like 5 hours straight today and I’m about to pass the fuck out but I just love hearing peoples opinions on this. Also at one point my phone tried to correct Dec to Sex so i think that’s a sign to write that Decladam no love you were teasing.
obsessed with your brain ty for asking. this is probably just going to be me pontificating about declan and adam but we’ll get there eventually
re: the scene with ronan’s leg in the car, i think declan’s reaction somewhat actually kind of IS because of the dreaming… declan mentions in CDTH that he considers adam a liability, he doesn’t like that adam knows family secrets/business, he knows adam lords so much power over his brother that he could either manipulate or destroy him (we know adam won’t, but declan’s brain is broken and he assumes everyone will leave in a spectacular, devastating manner). declan was, essentially, very badly treated by niall (argue with the wall, nothing declan experienced as a child was normal or correct) and is so genuinely terrified of anyone knowing what ronan is or what ronan can do that he would rather lock ronan up rapunzel style than encourage ronan to form bonds or build trust or share secrets with any other living person outside of the lynch family web/sphere. i think he also really dislikes adam for other more simple, real-world reasons: he thinks adam is trailer trash, he thinks ronan should/could do better, he recognizes that adam is keeping big secrets of his own and just doesn’t care to clean up his mess after he breaks ronan’s heart.
adam and declan are extremely similar, purposefully, in a way that is impossible to ignore. in the way that jordan and ronan are paralleled, adam and declan are constantly drawn in comparison to each other. self recognition through the other, and you hate what you see. adam also understands declan, even though he strongly dislikes him and this sometimes taints his judgement/perception; he wants to be declan, he wants to eat declan, he wants to wear declan’s skin and fuck declan’s girlfriend and possess whatever money/power/influence/confidence that declan has. in TD3 we see declan turning to adam for advice, because adam has become an expert in a field declan cannot master: ronan. adam also understands and enjoys something declan has never bothered to indulge himself with: magic. adam fills the dominant role in his relationship with ronan, and he does the same for declan, sometimes, too: in TRC he is shown running point between ronan and declan and enforcing ronan’s boundaries for him because declan refuses to recognize ronan’s limits; in TD3 adam is often the bearer of bad news and the voice of reason, much to declan’s chagrin. adam’s also a foil for mor, but that’s got nothing to do with the fact i think declan’s a little homophobic and a little bitchy and a little classist.
i think declan keeps his mouth shut about ronan’s sexuality for a few reasons. 1 being that it didn’t serve his character for maggie to make him outright hateful, but she did give us little glimpses into his distaste for it. 2 being that he’s got so many other things to hate ronan for or to argue with ronan about it would be fruitless to be like “and you’re gay now, too?” 3 since ronan was born (made? manifested?), declan has been trying to keep him alive. in TRC he needs ronan to listen to him, because he’s trying to keep ronan safe, and if he starts picking on ronan for things other than being an alcoholic suicidal failure then he might as well just start sizing coffins: ronan COULD show up to class, ronan COULD behave better, ronan COULD follow the law, ronan can NOT stop himself from being gay, and he can NOT stop himself from dreaming. i THINK (and i may be wrong) declan only really tags on ronan for things ronan could change, or things that would put him in danger. that said, i think it’s kind of unrealistic that he doesn’t pick on ronan for this, and he might “offscreen”: a third party observes that declan looks displeased by ronan’s physical proximity to a boy he knows he likes; but i think declan also interprets any sort of intimacy or closeness as a type of danger or threat. his brain is a bag of cats. by wanting someone, by trusting someone, ronan puts himself in danger. declan thinks of women as disposable (he does, he sucks, sorry about it) because the woman who raised him was a facsimile of a person, designed to obey, and she was unable to nurture or fulfill declan emotionally. my theory is that if ronan had a woman, declan assumes ronan would treat her the way declan treats his women: like an accessory. ronan, though, is a different animal, and i think during the series we see declan come to terms with this, even if he really dislikes it at first and thinks ronan is stupid for letting adam in when adam clearly has his own thing going on.
i also think ronan and declan do genuinely dislike each other. throughout TRC they genuinely hate each other and do not get along at all. they love each other, but that is not enough, most of the time. declan would hate anything ronan did. ronan makes fun of declan for his sexuality, because he finds it overt and distasteful. we aren’t explicitly shown in canon that this is a two way street, but listen… it’s definitely an argument they had. it just wasn’t shown because it didn’t serve the larger narrative, which is fine. there ain’t no way declan’s not a tiny reaganite, there ain’t no way he doesn’t have his thoughts and opinions. these are rich white boys from virginia in the early 2010s, for christ sake. but it’s also sort of a case of “oh i don’t hate my brother because he’s gay, i hate my brother for a dozen other reasons. he just also happens to be gay” <- guy who would definitely prefer it if his brother would just find a nice girl to settle down with and subsequently ignore just like their daddy did to their pseudomommy
i don’t even know if this answered your question. i just started thinking about declan and then i blacked out. did we learn something? did we solve the riddle? who knows. i have to stop because this is insanely long. the decladam fic is at 3k btw so we’ll see if i ever finish it