She was and still is your friend Andrew's home attendant, and because you spend a lot of time at work you asked her would she be wiling to do some work "off the books?"
You just needed some cleaning up around the house and some laundry done, maybe once a week and was willing to double what the agency was paying her, plus she wouldn't be taxed on the money since it was "off the books."
One afternoon you came home early and got a chance to see her in her housekeeping outfit and you told her that she looked good in it almost like a wife from the 1960s.
She told you:
"I could be your wife"
You're not really sure if she was being sincere or maybe it's a money thing? Nevertheless, you've been playing house for the last few weeks with her.