Well, Igarashi sempai isn't the one who broke up the relationship. It was Chidori. As for her reasons, it's not clear yet.
It looks like it was an uncomfortable relationship for Chidori, that made her sad, even though Igarashi seemed like she wanted to keep it working (hence the Honmei choco).
I guess we will now know why Chidori put an end to it and swore off love (not for long though).
last edited at Aug 3, 2019 8:17AM