
If it's not meant to be, it's not meant to be. No matter how much you want something, if it's not for you in the end, it's not for you. Feelings change. There are times we will fall in love with someone new even though we don't want to. It hurts for both parties but you have to accept that and move on. Sometimes we keep holding on because we don't want to waste all the time and memories we've had together or we're afraid of hurting the other person. But doing that will just hurt that person more. Let him go. Set him free. Wish for him to be happy.
Is this the last chapter? The last few pages made me think we're going to get a story about mizusawa san and the customer but I haven't seen any raws
seems there's more:
http://www.mangago.zone/read-manga/tenchou_koi_desu/uu/tenchou_koi_desu-chapter-1/5/