Gloryhole Sexual ethics hypothetical that stumped my (lgbtq+ poly sex+) friend group.

Here's the hypothetical situation. Girl wants to be in a gloryhole at a sex party. Everyone KNOWS that she is the one doing the servicing but she explicitly DOESN'T want to know who she's servicing and will ideally never know. Guy has, on pervious occasion asked girl if she'd like to "play" (community term for it) with him presumably under "normal" circumstances and girl has said no. Girl knows guy is frequent attendee at these events.

Is it ethically permissible for guy to go to the gloryhole?

On one hand (and where my "gut feeling" is) she has already EXPLICITLY rejected him and even though a situation like this is IMPLICITLY an open invitation (and newer overrides older) EXPLICIT trumps IMPLICIT ergo he can't.

On the other hand (and where logic leads me) A she's deliberately conceding control over selection while she's in the box, B she rejected the guy sure but the whole point of a gloryhole is there's a disconnect between the person and the dick and C by her OWN DESIGN if he does participate SHE will never know