What are the two speakers talking about?

W: How are things going with you and your roommate, Wallace?
M: Not very well, Theresa. We’re supposed to share the groceries, but I end up feeding him three meals a day. My grocery bill is huge, you know. I really can’t afford it any longer.
W: I know how you feel. I used to have a roommate like that. She never offered to reimburse me for anything.
M: I’m really fed up with his freeloading, but I just don’t know how to tell him that he should come up with half the grocery bill, because sometimes he treats me to a meal in a restaurant.
W: Well, honesty is the best policy. Maybe you just want to have a heart-to-heart, friend-to-friend talk with him. If he refuses to mend his ways, then ask him to move out. You can’t let him wear out his welcome.
M: Well, you are right, I guess. But I just don’t know how to start...
W: Oh, come on. Don’t act as us girls. You know it was just like what I did when I started to deal with my roommate then. It is not as complicated as you thought. Believe me.