It was a busy day at work, given that first thing that morning Ern had noticed an odd journal entry, which had subsequently led to a day long search in the Forbidden Forest. (Seeing that was the place where Michael had been found, it only made sense that Fenrir was hidden within with Shiv.) The search party will disband once daylight disappears, as the forest was infinitely more dangerous in the night. After giving report to the next shift, Ernie made a few quick stops in Diagon Alley for a couple of pies and wine before apparating over to Dean and Seamus' place.
At this point he felt like he needed a break and diversion from his own reality. He still had difficulty with the responses that he had received from Greyback and hoped that Shiv would still be alive when they found her. He had no idea why they'd keep her alive for so long after having captured her, unless it was to turn her. That thought made him shudder too. But now it wouldn't help for him to continue to be stuck on this further than he needed to do his job. And what better way to move on and cope than to surround himself with friends?
He felt bad for not stopping by to see Dean earlier but was busy with the calls and reports of sightings of the witch on the newspaper cover. Most, if not all were false reports, as the witch was rather unremarkable in feature when it came down to it. He could've sworn she looked familiar though.
Ern was finally visiting Dean though, knocking on the door to the home he shared with Seamus as he balanced the paper bag with the pies in one arm, and the red wine in the other.