I was a little off put by Nora this episode, but there are still lots of facts we don't know about the rules of the realm of the dead, for all we know there might be times when the awareness of what they are comes and goes. They all have tragic and sad backgrounds, so maybe sometimes they get stuck in the pain (past) relieving the memories.
As for Tate's talk with Hayden in the basement I was pretty sure they were talking about him having to go up and rape Vivian, like he did before. His behaviour this ep and the revelation that he is the "rubber man" lead me to think that he has multiple personalities, (whether it's a side effect of being dead or if the House brought it out while he was alive I don't know) and that the House nurtures the psychotic side and in turn gets to use him as it's puppet. His whole demeanour this episode was vastly different from the past ones, at least for me his character was almost unrecognizable, I just can reconcile his actions and behaviour with what I've seen from him in the past. And we've seen this kind of dual thing several times before, Bloody Tate and Tate the patient, Normal Tate and Skull makeup Tate, and in this ep we had the two facial expressions on the mirror at the beginning. Besides he always seems to fluctuate between being kind of childish and being dark and eerie.
I don't think Moira helping out Tate was out of character or weird. She is very self-absorbed and she was protecting her own interests. I mean, Tate had already set to kill Chad and Pat, he had made himself know… so as she said, a police investigation where they would be looking out for a murdered would've been potentially dangerous for them, for the House and all it's secrets.
Did Violet lose her virginity to Tate or were they talking about the fist time she cut herself? I'm kinda lost on this one.
Is there a pattern that repeats itself with the couples in the house? One sleepwalks and is driven to play out his/hers darker needs and wants while the other is driven to madness? I could see it as a mirror to Charles and Nora's story. He got lost in his obsession with experimenting and she went crazy with grief and committed murder-suicide. Then we have Hugo cheating on Constance and Moira being a slut, and Constance going crazy and killing them both. And we have Larry having an affair with Constance and his wife going crazy and setting herself and her daughters on fire. Pat seemed driven to the S&M chat room "cheating" and Chad said he felt like he was going crazy. What keeps on bothering me are the nurses murder, they don't seem to fit into any theories whatsoever.