The impression I got was that both women were planning to have sex with him, but on their terms. This doesn't mean they can't be raped.
Rape and sexual assault victims vary widely in what they will do after the crime. Some victims in fact deny to themselves that the assault ever occurred, and try to go on precisely as before. I don't think this is a healthy reaction, but it happens.
As far as Assange goes, in what way is he being treated oddly? There were credible allegations of sex crimes, and he was undergoing due process through the Swedish justice system. They have asked for his extradition from Britain, and that has been granted. What's unusual about this, aside from Assange being somewhat notorious and having some extra resources to evade the legal process?
And why do you think there's a real threat of being imprisoned in a US gulag? Why do you think any such threat would be worse in Sweden than in that notorious US lapdog, the UK? If Assange was concerned about being extradited or special-renditioned, what would be the sense in going to the UK?