Bing doesn't typically dream, hasn't since the accident, or at least if he does, he doesn't remember it when he wakes up. Nothing. It's like his brain just shuts off when he rests. So when he starts waking up, still exhausted, no matter how low he dares to let his charge get, no matter how many hours uninterrupted he manages to sleep, it barely occurs to him that he might be having nightmares because he never remembers them.
He's dozed off in the last three meetings and given how little he actually contributes to them, nobody seems to have noticed, or if they have, they don't say anything. Well Dark keeps sending him death glares when they adjorn so it's very likely that Dark's noticing. It's after he barely keeps his eyes open for the fourth meeting, that Bing is approached by the Host.
That has him on edge, even without the strain of sleep deprivation, because the Host is weeeeird. Which considering some of the people who sit at that table is saying something. I mean, he's blind, but he sees things he shouldn't and he has this creepy all-knowing vibe to him while he sits in silence throughout the meetings. Dark seems to avoid calling on him, Wilford always gives him side-eye. Like everyone seems wary of him and Bing is perfectly okay with not finding out why.
The Host approaches Bing and using that weird third-person self-referencing thing he basically comments that he's noticed that Bing seems tired and that the Host can maybe offer some assistance.
Now Bing doesn't know exactly what the Host can do but he's sure Dark has mentioned at some point and it's some kind of mind mumbo-jumbo, which immediately has Bing feeling very vulnerable because that's where he keeps his secret, and it's not something he's ready to be sharing with any more than the gajillion people who already know. Not to mention, the thought of someone messing with his head is not a great one, so he's like "Thanks bro but no thanks." and just leaves.
Three days later, Bing feels worse and can barely understand English any more - slight exaggeration, he can understand everything, he just can't focus long enough to get proper meaning from words and spends the day curled up in the TV room, staring at whatever the hell it is happens to be on the TV, he's not that bothered.
He barely notices when the Host comes in, knowing Bing is going to be here, knowing that Bing is worse off than he was last time they spoke, knowing that as far as Bing can determine, the Host might as well not be there.
All the Host does is talk, softly and as calm as he can manage, not wanting to disturb the clearly distressed droid, using his narrations to gently guide Bing towards sleep. It takes a while before Bing finally dozes off, but the Host is patient and waits, patiently waiting until he's certain that his looking inside Bing's mind will be at low risk of waking him up and making things worse.
When Bing jolts awake again, several hours have passed, his head feels just as heavy, his brain as mushy and the TV has been turned off. He turns this way and that to see the room empty. He swears someone was just talking to him.
"How bad is it?" Dark stands behind the desk in his office. He's seen that something's wrong with Bing and since Bing is unwilling, or possibly unable, to reveal what the cause is, he asked the Host to do what he does, and find some answers.
The Host stands on the other side of the desk, his arms folded, his lips in a tight line. "Bad."