Lolly is set up to be the villain of Alex's storyline this season, but once Alex confronts her, Lolly reveals her true colors: she's a looney tune who actually thinks Alex is part of a conspiracy to kill her. It's possible that it's all an act to throw Alex off her scent, but let's assume that's not the case. Lolly is on the scene right before Aydin shows up in the greenhouse: what if she forgets something and walks in right as he's coming at Alex? She could save the day — especially if she still has that shard of glass hidden somewhere. While most of the inmates are seen frolicking in the lake, Lolly is absent. Is she in the greenhouse?
