As soon as Ryan arrived at the bar, DI Dember was already there waiting for him. He had sighted the detective already from afar, and the detective, him. So he just walked straight to where the detective was... at the booth.
He still hadn't gotten himself calm after the incident with Apollo. For sure he really needed a good sleep after the incident, a sleep he wasn't even sure he was going to get, but the impromptu call he had received from the detective made him remember he was meant to meet with him.
He would have declined the offer on a say that he was unwell but the biggest burden of today made him change his mind. He knew he could get few answers from the detective, that was certain.