I don't like the author's afterword explaining Momoka's argument. It looks poorly done, and it also looked like Izumi's response of Momoka's argument being valid was sloppily done.
I honestly feel like it would've been better if the retort had been more along the lines of,
"You came here saying Tsubasa approached him selfishly, but how would you feel if
I went and blamed Seto-kun, saying he
'forced his trauma onto her'?" (or something to that effect; this line's clunky)
That'd make it clearer she doesn't
actually necessarily think that (and is just trying to turn it around on him), while maintaining everything else, and actually matching the stated intent of "Momoka choosing her words carefully."