I am not sure what resolving it would entail for you, but the story has continued, and conflict will continue to happen and be resolved.
I was thinking back to the "happy" type of person she was before. As I don't know if I was just kinda doing things out of order but I do remember there were several events in the days after getting her back where everything was "normal" in others storylines and while I know that is because they're scripted and it would be near if not completely impossible to account for that it seemed really odd to me.
This is a known issue, but I don't know if it's on Runey's priority list of corrections. I personally believe that the flags of required progression to initiate that event are improperly set, due to the open ended nature of story progression with each girl.
In my first playthrough, I was locked out of progressing Maria's events for almost 2 in game months before getting her back due to progression requirements to initiate that part of her story. Needless to say, it felt really awkward when I finally did get her back and read through the next few events.