@RedVanGhoul Welp, if we're talking about potential love interests, I want the nurse girl from the beginning back ( ̄ε ̄). I agree though, that healer girl was being set up like that, but I think her true importance to the story was to show a clean break from MC's weak past and his current self. That was the whole point of that arc, with magic swordsman's death (did he die? Not remembering it) and all, kinda similar to how a hero's hometown is attacked in rpg games so he is forced to start anew.
There's always a chance that healer girl will come back later in the story, considering how she was a class A healer, but I doubt it, since she already fullfilled her role in the story and how she's probably still suffering from PTSD.