There are probably worse ways to engage in *koff-koff* "stress relief", but based on the dialogue, Kogawa-san could hardly be blamed for doing what she did. And at least if she was going to "ramp things up to eleven (and beyond)", it's probably safer that she do so with someone who could be trusted like Hizaki-kun.
A rather IN-teresting debut on FAKKU by this artist.
I can understand her frustration and stress over the burden of work. But to attack him out of the blue after he saw her was just a bit too much for her, huh. Guess at the end she got stressed again and is now forcing round 2. I truly thought she would jump him then and there at the end.