First of all, I never "switched" positions on anything. I merely implied that the behaviour, as you described it, was behaviour that is often attributed to women and that I didn't see any reason to look so negatively upon such behaviour because it is so commonplace. This was not an agreement of your stance on Josy's behaviour, I was just trying to say that if you choose to view it that way that it's not as big a deal as you're making it out to be.
Secondly, if you see this all as conscious manipulation by Josy to "lead him on" then I'd say you have some major hang-ups about women to not even consider that this is all just happening naturally. When she says that thing about possibly moving, she's more than likely just, as we say here, talking out her arse which is something people do all the time, and some people will pick up on that and others won't. It's not a conscious cry for help or her deliberately trying to pull the MC's strings, she just verbalised a random thought and the MC took it incredibly seriously. In this case, it's more about the MC overreacting to Josy's idle thought than it is Josy saying it for attention.
When it comes to the sweater, again, it's an idle gesture by the MC but easily could be interpreted by Josy as a more meaningful gesture than it actually was which is what leads her to saying that "goodbye not farewell" thing because she may have thought this meant something and she wasn't willing to let it end just yet. This is also not manipulation, just a simple gesture that was interpreted as being something deeper by the other person, something which is also quite commonplace.
This entire thing is likely just two people reading more into the words and gestures of each other and confusing the hell out of each other in the process which regards to trying to figure what the other feels for them and what to do about their feelings for the other person. This is a far simpler, more likely, and entirely realistic explanation/interpretation than this being conscious emotional manipulation by either of them.