What’s the possible relationship between the two speakers?

W: Have you found anything wrong with my stomach?
M: Not now. I’m stir examining. I’ll let you know the result next week.

M: You look a bit worried. What’s the matter?
W: I just seem to be putting on weight these days.
M: Oh, that’s a problem. Have you ever thought of arranging your timetable so you can go to the keep-fit club after work?
W: Yes, that sounds like a good idea. Thanks a lot.