What is the most probable relationship between the two speakers?

M: I hope you can understand my reasons for deciding to leave, Mrs. Harrison.
W: Do I have to remind you that we have invested a lot of time and money in your career here? I hope you will have a second thought about your decision.

W: Please turn on the air conditioner. The temperature is 39℃ today.
M: All right. But I think it might be cooler outside at this time of the day. Many people are doing their morning exercises outdoors now. Why don’t you have a try? It does well health.