Maybe I was just crazy insecure, but if I was him at this age, all I would feel was relief. Actual confirmation that I wasn't hallucinating things were feeling romantic between us, and that I wasn't delusional to hope she might like me back lol
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.