No Romantic Resolution/Sandbox

It has always been a staple of stories to include a bit of romance. Stories are also generally fond of tying up the story so everything is neat at the end, except when they don't. Point A plus point B put together means that any romance set up in the story will generally be resolved one way or another with characters either hooking up, breaking apart, dying or just walking away from the situation entirely.

But sometimes it doesn't work out like that. Sometimes the story sets up a romantic arc that never quite seems to get wrapped up completely. There can be several reasons for this, of which the most well known is not wanting to upset the status quo. Sometimes the author just wants to leave things open ended, or the author feels that resolving the romance would in some fundamental way work against the moral of the story they're trying to tell. Most of the rest of the time, the author just hints that the relationship may be forming. The common point between all of these is that the romantic plot lines were temptingly laid out but never followed to their absolute confirmed conclusion.

Thus, there is No Romantic Resolution.