Why did Denji pass out, and why was he dizzy in Himeno's appartment?


In episode 7, everyone's out eating and drinking at the izakaya, and Denji
explicitly mentions he's only drinking tea:

[![Denji saying "just tea" in response to being asked if he's been
drinking](https://i.stack.imgur.com/9RDVKm.jpg)](https://i.stack.imgur.com/9RDVK.jpg)

However, later in that episode, he is apparently passed out and Himeno takes
him on her back back to her apartment. Later, he wakes up in her bed and says
he's dizzy.

Do we know why he passed out, and why he was dizzy? Did he get intoxicated
from the vomit he swallowed earlier from the kiss with Himeno, since she had
been drinking heavily? Or was there some other reason for his passing out and
dizziness?




He was sick firstly from having vomited from Himeno vomiting in his mouth, and
then secondly he may have been dizzy because he hadn't drunk alcohol before
and she momma-birds it into his mouth when he says he is thirsty.

His passing out may have been from just exhaustion but who can say.

