I already explained to this to Sera himself. Sera was after me even when we were lynching Odd and saying that I was definitely the cult. So I called him out on this confidence of his that I could only be the cult to him, because he was the mafia and knew I wasn't.
Secondly, Juliet was after me on the same day we were lynching Odd. Or the previous day phase. We had a failed conversion every night since night 2 and until last night. So if Juliet was converted, then I should have been converted before her and her coming hard at me or Odd wouldn't make sense after that.
So, if after janitoring Juliet and she flipped cult, which only the mafia saw, they wouldn't come after me to lure the cult out because I can't be the cult after the interaction that Juliet and I had. They simply came after me so that when I get mislynched, they could justify it by saying everyone was suspicious of me anyway.