you look poor
If anyone could comprehend and analyze Seraphina's dangerous action, Wren could clearly understand it. All the fiasco of luring all her enemies at the same time could prove his conclusion; Seraphina will drag them all to her death.
Though he was drunk last night, the moment he remembered her spatted words in her drunken state, Wren's mind functioned in a speed of lighting and speculated about her further plans and reasoning.
In the end, he came to the conclusion that Seraphina was on a suicide mission which made him agitated and worried at the same time. Knowing Seraphina, granting that she was never afraid of death and given their dangerous standing -- all of them were well-versed that they might die the next day.