"Are you sure you want to do this?"
Eren asked casually while lighting his Sativa Stick. He and Ivor were standing a safe distance from each other. Layla was standing in the middle, trying to prevent them from dueling at such a crucial time.
Layla had lured Oliver and his forces to the Dark Daniera forest after she made sure everything was in order. She could not allow herself to be chased anymore if she wanted to progress further in the Lazarus Project.
Layla wanted to get rid of Arthur's hounds for good. She and Ivor had to clash with his force multiple times at this point. And every time they had to run away after taking a bunch of guys out.
Thus, she sent a message to Eren and decided to retaliate. She was given no other choice by Arthur and his lackeys after all.