Fire Emblem Shadows Claude and Edelgard support (C B A)

Very disappointed since they acted like strangers toward each other, and should've gone with Hanya and Roy instead (I was expecting them to say, like, you look familiar or something, since they come from the same world). But now I think about it, compared to the backstory, we didn't see how Claude encountered Edelgard and Dimitri (maybe that will be seen in a remake 20+ years later or a Switch 2 game where the events take place in Fodlan when the 3 lords are children or they just started joining the academy), so yeah, sort of makes sense. But it makes me wonder how both of them + Roy gonna appear in future chapters (My thoughts is in the beginning of the Kyuubi chapter, the disciple of light got ambushed by the disciple of shadows which Edelgard and Roy join the fray fighting against each other (though I do believe Roy might play a part in the end of book 3) and Claude (the one who don't join light and shadow) appear and help the light (which makes it the 2nd encounter between Claude and Edelgard). It also makes me wonder how those who join neither Light nor Shadow (Claude and Ike) will impact the story. Also now I think about the 3 lords of Three houses doesn't have a support with each other (there isn't a revelations story in both Three Houses and Three Hopes where the three factions allied with each other against a common enemy that the 3 lords agree is a threat to Fódlan) Timeline C support: 0:00 B support: 0:37 A support: 1:12