User blog comment:Oppaichan/Rito and Lala still engaged?/@comment-1290686-20140107041924

Officially if not truely, Rito is concidered her fiance and that gives her the exscuse she needs to remain on earth with him. How engaged they are could indeed be concidered on a case by case basis. To their friends they are just two people stuff in an odd situation, on Deviluke they may be offically expected to marry. For all we know Rito has banners with his face on them flying across the universe in expectation of their nuptuals.

However unofficial the orangment is or wether they concider themselves engaged, it does not change the fact that they are concidered engaged and this is still mentioned in the manga. I don't see a reason for us to change it yet, not and till there is some massive "No we are not engaged!" statement from Rito or Lala that break it off in front of everyone.