Even the most dragged out of romcoms manga will have something happen, even if it's just filler. This is just the premise being reinstated endlessly, hence why I assumed the author just wants to draw these two doing poses and nothing else.
I know it won't matter because this manga is extremely wholesome, but it's kinda funny that from the MC's perspective, he will be running away from the seemingly-axe-psycho mom only to walk into a room with a literal wall of text involving himself and every interaction Momose has had with him...
Firebombing is indeed devastating, but it seems to be pretty shit as a demoralization tool.
Case in point, Japan indeed got firebombed to hell and back and yet they wouldn't entertain an unconditional surrender until the nukes came into the picture.