"That begs the question of whether we tell him about...us..." The word is uncertain, as is Elijah's look--a moment of vulnerability flickering through his eyes, though self-aware amusement overlays it. It's not nearly as angsty, at all, than the rest of what they're discussing, but still. He doesn't know what this is--if there is an "us," and given they've both avoided talking about it to those close to them...

Well, hitting on Damon in front of Damon's best friend who knows or who didn't know that said best friend is...involved with him? That has different approaches.