"Instead of being happy at getting your first kiss, I would much rather feel disgusted," Eren said, still standing straight, albeit a little unstable.
His words were upsetting to the Ghost Queen but more than that, she was surprised that he still hadn't fallen asleep. She was sure that even if it was a Professor like Axxel, he should've long been asleep as she directly administered the poison.
She didn't realize that Eren had the Bloodline of the Celestial Dragon, which came with slight poison immunity.
It couldn't remove the most toxic of poisons at this point, but if it was just the sleeping poison, it was much easier to handle.
Moreover, until his immunity removed the poison from his body, it was his pain that kept him awake, preventing the poison from putting him to sleep.
At times, the pains of spatial portals was his biggest curse. However, now that same thing had become a helper.