I agree. They were a young married couple, new to the building. When things went south with Terry, no pun intended, they left themselves wide open just by introducing themselves out there on the street that night they met.
"So I Hit Him With My Shoes!"

She could have said no to that first dinner, but if the coven/Satan really wanted her they would've found a way - They still could've spoken with Guy at some point & persuaded him to drug her - When I think about it, the ritual could be dismissed ever more so as a dream