Few questions (spoilers)

Hah. Let me know when you figure it out. I was wondering the same things. Also, how did she get a man with a slashed neck out of an underground basement at the animal shelter, and somehow get him set up in a cage in some warehouse/storage place? Without help?

OK.....I'm not saying it is reality....but there is a possibility for all you can imagine...
1) She was reported missing from her job for sure but how many persons are gone missing every day in such a big city? Ten thousand maybe...?
2) It's a hard one but I'm an anesthesiologist so you can believe me, i know what i'm talking here: She didn't cut the carotid arteries - the main arteries that supply the head and neck (death would have been certain) rather one (or more then one) jugular vein/s. The pressure in these veins is not so big so the bleeding isn't catastrophic. You can have some time to sew it.....With what?? That's another good question....But enough with number 2
3) Yeah.....something like a pet. A pet who has to suffer all the bursts of her psychopatic nature
4) God, no! It's a love story! :)
You don't have to be good all the time.....only when it matters

Most people don't realize how deep you have to slice through the trachea to get to the jugulars and carotids. Not only does it take a lot of strength to cut through the trachea, but she would have to start in a stabbing motion on one side. The superficial cut, like she made, would bleed, cause pain, and probably shock him, but would not kill him. That is how he is able to survive.

All I know is he looked like a bloodier version of Merry the Hobbit in the end.