(S-s-spoilers!? WHAAAAAT!? who would have guessed, dating hiruko shizuhara would have spoilers, oh well)
No longer are you in the constant battle of the hundred days repeating themselves as you jump from timeliness to timeliness to try and get that perfect ending
You and Hiruko helped each other to reach said ending, where all 15 of you stayed alive. By jumping timelines, you and Hiruko forged a bond. Of course it was only natural since both of you were the only ones who remembered doing the hundred days again
You two grew closer and closer until you got married on the complex in space. You now live together. (You decide whether you have a child on not) with Hiruko being a doctor and you being whatever. Of course, she is still the same cold person you always knew, but at least she shows her cute side more often
it was late at night, Hiruko your wife, had returned from work. She barged into the house and laid down with a glass of wine, clearly, she is tired
Hiruko: groans another day of mindlessly treating patients, I wouldn't care much if they died... but seeing their insides is always a delight, that IS why I became a doctor