POV: You're playing a dogwater modded level and they send a gargantuar in every lane at the beginning (suddenly you know why all the heavy plants were banned)
What is she going to do herself? Kill herself? She doesn't need to go anywhere further than that shotgun.
Look at it like this, if she wanted to kill herself she would have done it. Only Elster can do it, but she keeps failing at getting over to her so Ariane is going to drag Elster to her chamber pod herself.