I quickly read through your posts.
If I were a Town member, I wouldn't kill Aru, as I consider him useful for communication, which undoubtedly adds interest to the game. If I were a Mafia member, I wouldn't kill Reg either, as I don't have the habit of eliminating strong players early in the game. The happy girl is clearly not a novice in psychological Mafia, which means she could be anyone – it will be difficult to expose her.
I consider Medzh to be the top player in this game, and I partially believe his reaction – the Town's chances have sharply decreased, and the Mafia is killing strong players. By revealing himself as Town, he reduced one slot for the Mafia/Man to make moves, even if he were a Town role player.
Regarding the Doctor – he is a novice in this type of Mafia, as he healed himself => he didn't have immunity. Essentially, the Doctor could be 6-7 players. Guessing is pointless for now, and there's no need for it.

Added 2 minutes later
By the way, happy girl, who were you with last night?