Shima doesn't have the courage to show his flaws to her, he just wants to show his good side and be a better person, but then he gets disappointed when she praises it on him? It doesn't make sense. You need to be honest and show yourself completely to the person you like so that they can love you completely too. And a little self-love is missing. For him, his kindness is something bad, so he can't receive her love about something he hates.
This is the first time I've been enjoying a drama like this, that's why I'm not even anxious to be resolved lol. I love this manga.
Thanks for the translation!