Curate, connect, and discover
I imagine that there's going to be a day in their future together where Dan and Herbert are having some argument about their work for the billionth time, and Hebert will bring up Meg mid-way through their argument because he's toxic like that and instead of it usually working and manipulating Dan like usual, Dan is just unfazed by it. He just casually deflects it like "c'mon Herb you know that has nothing to do with this" and he just continues making his points. But Herbert's not listening. He's stunned. He's baffled that his tactic didn't work, because bringing up Meg usually wins him their fights and at the least makes Dan storm off so they can both cool down and forget about it.
But not this time. Not today. To anyone else this it would've been obvious to see that this was going to happen eventually because it's been years since the bride and even longer since the Arkham massacre. Dan's healed, reflected, and worked on himself (Maybe not fully but you get the point). He's moved on from Meg. But Herbert hasn't.
Meg was his metaphorical fish bait to hook Dan onto and reel him back in towards Herbert. But today he's left with the sudden realization that it didn't work and it's not going to work ever again.
"Herbert are you even listening? Yknow what, I know you're not so I'm just going up to start on dinner, I'll call you when its ready."
Dan leaves.
Dan might leave him; Herbert's mind tells him. He might leave Herbert permanently, forever, his mind reels.
If Dan's gotten over Meg, then that means Herbert's lost his biggest grapple to keep Dan around when things get tense between the two of them. He has nothing to hold over Dan's head filled with a guilty conscience, nothing to hold onto Dan with.
Of course, Herbert doesn't realize that Dan's gotten over Meg, Francessca, and all other women and people because he's completely moved onto Herbert. Wonder how long it'll take him to get his thoughts in order and figure that out. Probably awhile considering that when Herbert snaps out of his funk by Dan calling "Dinner's ready!" from the kitchen he checks his watch and realizes that he's been standing in the same spot and staring into space for the past 43 minutes.