[ Maedhros will indeed realize eventually, when calm has settled and he can think clearly. At present, Maglor's presence, while a comfort, is a small one. He wants to see Fingon. He can come to some decision about their state once he feels comfortable that both Fingon and Curufin are actually who Maglor believes them to be. He can decide how to feel when he has all of the facts. Then, they can determine a plan of attack.

His pulse is racing, but he is able to release a long breath he hadn't realized he was holding when the pain in his hand begins to subside.

He huffs in response to Maglor's comment on Curufin's sanity. He moves his fingers to test it, and the moment is stiff. ]

I don't blame him for wanting to distance himself from our lot in the Halls, if that's what you mean, though the idea of Tyelkormo allowing him to do so seems unlikely.