Did Grim get so pissed at Sky he's let his frustration through and is starting to crack under the apparently telepathic gut instinct of his? It's certainly looking that way, especially in the early exchange after he got called out for voting Sky.
I'm starting to get scum reads from Sky as well though, she keeps fluctuating with her play between being somewhat switched on with her directions to erratic, almost tip toeing posts. Almost as if she's being guided. Doubtful they're both mafia though.
I'm happy to give a town leans for Odo & Jeff, I don't think they're scum. Jeff wouldn't go as salty as that if he was scum and Odo has been leading a lot of the town side so far.