It was all still rather part of their dance. There were steps forward, steps backward, steps sideways. This would be steps backward because he knew how Svetlana got when confronted with these situations. He knew the emotional repercussions would be extensive and dealing with them would need to happen over a period of time to come. But the fact was that Anatoly was going to be right there with Svetlana, to help ensure she dealt with what happened instead of locking it all away and inevitably making it all the more difficult later on down the road. This time, she couldn't put it aside for the bigger picture because there was really no bigger picture for them to deal with.
There was obviously Anatoly doing his job to tend to the injured he knew would come. But that was different than Svetlana setting aside her personal issues to focus on something else and forget about herself. And clearly he knew telling Svetlana about Fayina's post would make it worse, but he knew she'd find out sooner or later, whether it was from one of their daughters or by simply looking at the boards on the computer. It was probably better that he'd told her that now so she could prepare herself to manage it.
Thus the ice facade didn't go unnoticed by him. And he did take a moment to read her, looking for the small details that would tell him how concerned he should be. It wasn't always a good thing for Svetlana to take on such a facade, but he knew there were times when it was necessary, where he needed to let her process things in her own way. And for the moment, he would let her do just that. It wouldn't do either of them any good for him to push her on the topic here out in the city, nor would it do any good to argue against doing his job. No, he knew he had to get back to the medbay to help with any injured people that came in as a result of the curse or for those who were going after Maleficent.
"It does seem as though that will be the case sooner rather than later." So it would be back to the complex. And when he wasn't dealing with helping the injured, he would be watching Svetlana and ensuring she was moving forward in dealing with things and not simply letting them fester within her.