[/spoiler] So my question is "Do you think Chikai broke up with Yukine because of Hanabi?[spoiler]

I am so confused because there is no direct evidence that he did this for her. None of the protagonist except Hanabi does express really well their feelings and that is the bad side of the story, even if Hanabi did make me angry with her behavior and stubbornness.
It's totally different from Strobe Edge, where she fall in love but doesn't really do much of anything to show her love instead of Hanabi who is looking like the stalker one haha