Fortunately for Dinah, Oliver had been keeping to himself, for the most part, except for the occasional trip to the office--which had indeed shown up on the skyline not long after his arrival. It had taken him a couple days, but now he could usually visualize it well enough that it stayed put when he needed to go to work.
As soon as he'd settled into the office, he'd looked up a florist shop in the phone book, and had flowers delivered to Dinah by way of an apology for being a dumb-ass. Even if he was in the wrong time, it had to be awkward for her, and he knew full well he was not the easiest person to live with.
However, he didn't expect her to buzz in to see him in person. So learning it was her, waiting to be let up, would be a pleasant surprise. "Hello?"