He listened to her suffer a bit of an implosion. All he was getting was the confused blowback of what was all scrambled in her head. He felt for her. She had every right, and she was alright smart enough to piece together that this was his doing. She was trying to short cut the excuses and sorely needed him to come straight to the point.
Robert was fine with coming to the point, really. Rick wouldn't be. Rick was going to have a melt down that it was all blown to hell already. In fact, most likely, that was probably what poor Michael was having to deal with. And if Robert's brief encounters with Rick were telling, on this issue at least, Rick was rigid. Unyielding. Robert understood that. Had he been in Rick's position, he'd have, himself, most likely been some sort of postal. Ah, well, if Michael could manage Robert when the curse had him unpredictably and explosively violent, he'd probably manage Rick. Maybe. Hopefully.
"Alright, wait," he said, hoping to slow her brain down just a tad. He was moving into handling this in a debriefing format, a format Hallie was well familiar with and would, probably, just automatically shift into. He hoped that would help her cope. The truth was, he was not her enemy. Nor Ricks. Keeping them in the dark, Robert didn't agree with now as he read the account. He didn't see that it had been the only option in play. Certainly it was the best, the least risky, but the cost--crushing a family--no. Robert didn't believe in that. That cost had just been too high. And with it, had they, in fact, crush the very man they'd invested so much in? It was time to bring Rick home and to try to undo the damage. Hallie and Amelia needed to know. And, Rick needed the question answered about whether he could salvage any part of himself, and any part of his relationship with the people he gave it all up for.
However, it did peak Robert's interest as to why Acker wanted more information than was in the Ministry dossier. Well, the accepted copy. The classified file from Rick's role as an Unspeakable was something no one had seen except Robert. And it occured to him. It was the same damned file that was laying out in the open on his desk, with big red "Classified","Eyes Only", "Minister of Magic" stamps all over it. He didn't change the calm expression on his face, but it was work for a brief moment while a flurry of obscenities raced through his brain.
"Why was Acker fishing for information on your father? He has the same access to information on records of citizens as anyone else here," Robert asked calmly. When the one you're with is nigh onto hysterics, someone has to attempt to be calm anyway, he thought. Well, that was partly true, and partly not. No one had access to information on the Unspeakables and it was just rather accepted. Only the Minister had that, and, in fact, most Unspeakables didn't entirely know who was an unspeakable and who was not.
"Unwind just a moment, and decide which rabbit trail you'd like to run down first. Your father's existence or lack thereof? Or his allegience? Or what he was doing when you last saw him? Or the trail that answers was he ever the man you thought you knew?" He knew how he'd have wanted the story told, but he wasn't sure in which order she was prepared to hear this. He was seriously hoped he wouldn't have to open this proverbial worm can by having to tell her, "Oh, by the way, your father was never dead. Yup. That was him you saw just now, and my predecessors made sure you believed the web of lies."