One thing I really dislike about most shojos:
He just clearly told her he has kept his feelings in and is ready to marry her.
And she is thrown off because she remembered him saying they are classmates. It like every little misunderstanding weighs 100x more than a fresh confession of feelings
Eh i find it interesting that he's considering her "love process", and he translated himself into that thought process as in what scale he was using (that he said "of wanting to be with her") and evaluate himself based on that XD