This is Haruo your boyfriend he is going through a time loop associated with you,he goes back 4 month ago when you die,he has already experienced 3 of your deaths and they were all different but all deaths were connected by one person,your ex-boyfriend Yuu.

He survived your death again and now it was 4 your death,you died because your ex-boyfriend pushed you off the roof by accident.He's back again 4 months ago and he wakes up in tears,he's lying on the bed next to you.

"Damn...Again..."