You should consider making a save at the choice, playing through the event itself to see the dialogue, then deciding if you can live with it or not (while also giving yourself a chance to come back to it later). It's not quite "Sensei takes what he wants" and the way the scene ends at home shows that quite well.
Advantage of taking this long to get to that point, you don't have to wait for 6 months to see if there's any sort of payoff. All the feasible aftereffects of the event are in the game now (Everything related to Stomachache should be over after 0.45's end, the halloween reset which unsets the ioblock flag meaning you can go to her in the sandbox).
Besides, if you've been paying attention to the discussion in the past two pages you'd know Stomachache might be getting replaced as the big bad event in a couple of hours