Why has the man approached the woman?

MB Our restaurant’s been open about two years, and we were just voted one of the best restaurants in the city. We’re riding high, so it has me wondering if maybe I should use this as an opportunity to expand my business. What do you think?
WB Well, first of all, congratulations on your award. That’s no small achievement. Now as for expansion, the main thing you need to think about is what that’ll do for you and your staff. I mean— how much do you oversee operations right now?
MB Exactly, that’s my main concern. I’m in the restaurant every day, and I oversee practically every detail. I definitely couldn’t do that if I opened another restaurant.
WB No, you couldn’t, which means you’d have to hire or train somebody you could trust. The main question is, what’s the ideal size you can handle, and still maintain your quality.