These two are such a powerful couple, I love it. It's great that its canon too. Even though Isuke is harsh she actually does care about Haruki's well being with her working herself to death. That's so adorable :)
Awww it is so sweet that she spent all her money to buy her girl. Though if they get married in the future, that money will come back xD All the more reason for you to propose, Isuke!!!