Perhaps she was desperate. Perhaps she'd been searching for someone with Soul Sight for years and finding Finn felt like divine providence. Perhaps she simply recognized that she couldn't make this journey alone, and her pragmatism overrode her caution.
Or perhaps this was a test. Perhaps she suspected Finn of having ulterior motives and wanted to keep him close to observe him. Allies were easier to monitor than enemies who operated in the shadows…
But at the end of the day, Finn knew all his deliberation was mostly for show. A performance of careful consideration that Vara would expect from someone in his position.
Because the truth was, when he'd surprisingly learned of the Fog of No Return — something that he still felt was uncanny because of the manner in which he had learned of it — he knew he needed to be on this ship, heading toward it.
