I love the common headcanon that Gregory Sackville-Bagg teases his brother mercilessly about his “mortal boyfriend” long before Rudolph has admitted his feelings to anyone, let alone Tony.

“I like the new hairstyle, little brother. Trying to impress your boyfriend?”

“What? Tony’s not my boyfriend!”

“Ah, but he did come to mind when I used the word boyfriend, didn’t he?”

“No, I—Well, but you—Ugh, stop!”