If she can detect even the slightest widening of the eyes of such a phlegmatic person as Rihito-kun, then they are practically like an old married couple already.
i understand rihito kun is trying to be a good friend by reassuring noa that hes likes her the way she is..., but he also needs to encourage her willingness to grow and change as a person instead of just enabling her to stagnate
Huh, a surprisingly normal reaction to physical contact (on Rihito's side). This is yet another form of progress, and it makes me very happy! They're growing, together (hopefully forever).
I noticed some really strangely broken up text, like it would often end right in the middle with a '...' and then continue in the next box, which felt really unnatural. Not sure if that happened in the raws as well or not though.
I also think you should probably attempt to translate the SFX, because I have no idea what 'bari caree' means
She might be catching on to the fact that Rihito might not have necessary mental facilities to respond to her romantic needs. Him getting on board with her request in the first chapter (then with her consequent behavior) with no fuss was not enough of a clue i guess. Also, Rihito not having the "entire package", as in both a tolerant friend and an attentive lover, would make a more interesting story imo considering this is suppose to be seinen.