Tsubaki-chou Lonely Planet, tome 6

After receiving what seems to be a silent rejection to her confession, Fumi had resolved to erase her feelings and power through her heartbreak… when Akatsuki finally answers—by asking her out! Despite the change in their relationship, however, their daily lives seem to remain largely the same except for one key aspect— if living with her crush was bad for Fumi’s heart, it’s nothing compared to living with her boyfriend!