1) Passes, there is Katie (main character) and Amber (minor)
2) Passes, they talk in a few scenes.
3) Passes but its dubious: there's a scene where Amber and Katie are talking when doing beeps but you don't really hear the conversation, so I personally won't count that; however, another scene has Katie and Amber talking with Amber offering Katie for her to come and stay at her house, and Katie responds by staying whats haunting her will just follow. Its dubious because while the conversation is between the two woman, Micah (the boyfriend) is recording it and at times is part of the conversation.
In another, they're sitting on the couch talking about the haunting. Again, it's really short.