Honestly it'd be the first time anyone called him an angel lmao. Most people assume he's a demon.

And yeah, his heart situation is very gay. His boyfriend "best friend" Taishakuten performed an emergency core swap to save his life once so he has Taisha's "heart" in his chest. Asura's going to be very tight-lipped about the details of that because he's very protective of "the one who complements [his] heart", but if Sora manages to notice anyway then he would likely be more open to helping him in his own quest re: Vanitas.