Well, cant say he is in the wrong here, I mean I don't really remember who the laundry lady is but if he immediately crossed out the NICE 😏😏 reward he had thought of and instead he went for some food, that means the lady may have had already pulled a prank on him before and so he immediately decided she was not meaning that kind of reward when she talked about it.
In other words she cockblocked herself by making MC think of her as a NO NICE REWARD 😏😏 giving lady cutting her chances of getting MC's Mr.D.
MC on the other hand should still learn more about people and their feelings so as to not let go future targets.🙂😏🙂