I kind of see the tension as a good thing that could lead to further character development.  The tension between the two being an interesting mark that may lead to further cultural development.  Perhaps our Dawn leads his beloved people out of the city, viewing them as weak and servants.  He remains on the outskirts to defend the city, owing a debt to the people there or at least the rulers.  Perhaps committing to the capture of other cities, but keeping to their nomadic roots?<br/><br/>I can't imagine this Index extends for all eternity.  Certainly there is a limit to its power and some eventual stopping of its influence.  Maybe he just agrees to turn the city over to Madder.  Perhaps a tense alliance forms between the two where he leaves her that city and port.  There are a lot of future story options and debates for the characters.