Honestly I'd prefer if he just said yes
or at least starts dating her.
Her personality problems are tbh easy to solve while Yozora is just... Evil? Sorry but thats the best description I can find for her :/
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Those who forget about the past are condemned to repeat it - Santayana
Sidenote: I'm seemingly too dumb for my current keyboard, so if you see the same character twice in a row, when it doesn't belong there just ignore it.