#he'd think it's because he descends from Blaiddyd when it's just

[randomnameless]

As renisfan said, Dimitri doesn't think Flayn sounds suspicious at all in their A+ support. And tbh, if Flayn married a Blue Lion, and if Seteth married Ingrid, then I can easily see both Flayn and Seteth revealing the truth about their history to their partner. Which in turn might lead to the Blue Lions knowing as a whole. And if you believe CF Rhea told Dimitri the truth, then surely the same is true for AG Dimitri eventually since AG is just CF from the perspective of Faerghus instead.

Mmh -

I still think there's a difference between Dimitri knowing and accepting his future wife sleeps a lot and will survive him - without understanding what it really means - and Dimitri knowing Flayn is a Nabatean, meaning her blood and bones can be used to craft weapons and some people are out there wanting to harvest her.

As you said, we can all see them trusting the BL gang with their secret, because the BL gang, unlike some other people, aren't the kind of characters to ostracise people based on the shape of their ears, at least when they're not OOC or warped by plot powers like what happens in Tru Piss if they join Supreme Leader.

But to make that jump?

CF and AG are still different on one crucial/capital point though :

Flamey!

Flamey didn't already sort of revealed what Nabatean Bones and Crest Stones can do (tfw no Baldo or Waldi acknowledged by the plot in Nopes), so in a way, in FE16, Flamey was the one who started to reveal "the truth", as her acolytes also kidnapped Flayn for her blood.

Given how Nopes erased Supreme Leader's fondness for Pointy Ears and Baldo and Waldi don't exist, no one knows what are Crest Stones bar the shiny jewels on relics.

In other words, FE16's events suggest to the world that humans exist, and other "beings" of certain power - even if the game tries its hardest to ignore it, or to prevent people from reacting to that knowledge, bar Supreme Leader and Hubert.

In Nopes? We know there are humans, and mole people, that's it.

CF!Dimitri might have seen Rhea turn in the IO in Garreg Mach, to protect the Monastery, and would have of course received a lot of "information campaign" deriding her as a inhuman and cruel beast. Coupled with the demonic beasts popping up, he's already in the mindset of "learning" that some people looking like people aren't... human (and he is okay with it!).

In Nopes, bar the rumour about a large white beast (I thought the IO was a known figure!!), telling him that giant dragons exist who can also turn into humans would maybe be taken as a joke "haha and you tell me Flayn is a fierce beast? Please.".

As for Rhea...

As explained above, Flamey opened the barn in FE16, Rhea is really really desperate in Tru Piss because Billy/Sothis turns against her, and she's again betrayed by a Hresvelg. She's being called inhuman and a "beast" by opposing forces, and had to witness people using, again, remains of her own kin as weapons, to the point of crafting new ones (Waldi!) and even capturing her niece.

So while Rhea's trust issues would be exceptionally low - Dimitri, with the knowledge from the past year, who also got his own share of "information campaign" might accept her and her kin too - especially if people already know (Manu and Bernie comment about it iirc?) she is not-human (a lot of people saw her in Garreg Mach?) - all of her secrets (the biggest of them at least) are already found out.

So there is no need to hide anything anymore.

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But yep, if Dimitri or any of the Lions know anything about the Nabateans, they will share with the rest of their friends because they are trustworthy, and I really like the parallel it creates to the first Adrestia - Nabateans trusted a bunch of humans who were worthy of said trust and never betrayed them...

Only to be betrayed by their descendants, 1000 years later.

I can see Flayn choosing to trust anew, and Seteth too, if Flayn does it, but Rhea? Without the extreme circumstances from Tru Piss, I can't see her do it, or maybe she finally does post AM, when she's chillaxing in Zanado (since she already doesn't value her life, it's better to come clean to the new King who unknowingly helped her, even if, in True Rhea fashion, she'd omit mentioning Seteth'n'Flayn in her "I'm not a human" speech. Hilarity ensues if Flayn already revealed the secret though, Dimitri being all "I already know about your ears, Flayn showed me hers!" which would be very serious business because showing ears to a human is akin to holding his hand). To be fair, AM!mural ending with a sort of cloth on Aredbhar could also mean Dimitri tries to put "it" to rest?

Ultimately I think it's a question or trust, can Nabateans trust the BL? Yes they can. Would they trust them? Flayn would without doubts, Seteth - who already spent 20 years pretending to be a human and hiding his true self - might do it too.

Rhea? She'd need a lot of external circumstances.

Maybe she would, post AG after the Monastery is retaken since she seems to admire/respect/love Dimitri but given how Zahras!Dimitri exists, she's setting herself up to be disappointed, again.

Fodlan KT sequel : Saviour King Dimitri's descendant, 1100 years after the events of AM/AG, starts a war against the Church of Seiros because Dimitri's sekrit history told his descendants that the Archbishop is not a human and eats babies for breakfast, and controls humans.

AU where everything is well that ends well : AG!Dimitri breaks his weapon while training and goes to find a lady in a lake who will give him a new sword (Flayn told him to go to that lake, but she didn't mention the lady part, Sylvain did), but it's actually a giant turtle, who makes fun of his ponytail and transforms in a human (!!!).

Since he gave him news of his "beloved niece" the turtle-man accepts to forge a new weapon, asking him if he also wants a "white sword" because Rhea kept on pestering him back then to make a "white sword" - Dimitri is shocked, Flayn is this turtle-man's niece and he knows Lady Rhea?

Lured by the smell of Zanado fruits on his hands (Dimitri tried to peel one for Rhea during their teatime sessions, while she brought him tea) he joins the party and sells everything out, since this man appears to be "Cethleann's friend", how he made a lot of swords for his siblings and their friends back then, how Macuil - that brat - took his credit, but he isn't like Cichol, he just finds it amusing - did you know he ranted three days and three nights about the shield Rhea borrowed? - and how he could make some for he and his friends too, aren't they fighting against Adrestia - it'll be a good occasion to make fun of Rhea, who kept on bragging about Wilhelm being her friend and how she trusted him a lot whenever Cichol said something - but in return they'll have to stop using their relics, because those things are dangerous and, anyways, it's better to put their siblings to rest.

Indech crafts B!Dimitri's lance for him, while Rhea's mortified, he just spelt out 1000 years of craftfully intricate "secrets" in one day?? "If your secrets were crafted like your crown, they would have been discovered sooner than later, sister."

Cue the BL realising what their Relics are, reacting to the plot and the Nabateans, feeling like dirt until Rhea tells them that children shouldn't be responsible for the sins of their parents, and asking them to forgive her for lying - the game shifting from "uwu war bad but can't we walk with her" to "let's stop this nonsense, and find the culprits who erased your world and try to do the same with ours"

Dimitri'd reply to Clout in Zahras with something closer to "shut up", like how he lived amongst them and saw none of what Clout is preaching, also he trusts them and trusting each other is the first step to create peace, thus, Zahras!Dimitri is erased from the plot.

the end