Sinai waited until they were alone before she spoke. "Sorry if you think it harsh but there was something I had to find out." She looked around again. "It's not policing that I'm used to. I was almost a sacrifice because of My spiritual pressure. So I had make sure they are a certain kind of people. They have sacrificed a man, when they run out of Men it will be women. That I have seen... i may be young but I was a mercenary before I joined the academy. I'm not judging ma'am I am acting on experience." She took a deep breath. "You may be used to the evils and carnage of the hollws..but I know the evils of man. The grey area. Which is why I said what I said. There are things that do not add up to me"

In regards to waiting or leaving sinai chose to stay. It would take to long for her to return to the seireitei from where they were.