But there is one missing piece here. There may indeed be nothing to this case, but the fact is that Assange's persecutors did not pull this plot out of thin air. If there were nothing to this but an innocent misunderstanding why did Ms. Ardin and the other woman not just meet and discuss it over coffee and put it down to bad behaviour? ...
The posibilities are hardly restricted to the alternatives you suggest. If the missing pieces to your question does not occur to you from your experience of human nature, reading known details of the case might be useful (the Gwynne Dyer piece posted by Unionist would be a good start).
You might also note that Anna Arden (who has now apparently relocated to the middle east) has previously appeared a little obsessed with getting revenge with cheating boyfriends, as her 7 step program published in January suggests--archived here:
http://translate.google.com/translate?js=y&prev=_t&hl=en&ie=UTF-8&layout...