What is the woman’s tone of voice when she first sees the man?

W: Peter, thank goodness, you’ve arrived! The class presentation started half an hour ago. And I was just beginning to panic.
M: I’m sorry I’m late, Lily. This morning has been a real mess. I didn’t think I was going to make it here at all.
W: Why are you late? The whole presentation depends on those graphs you are holding.
M: Yes, I know. I’ll tell you about it later. First, let’s see how we are doing for time. Two groups are still ahead of us, I think. The presentation on the rights of the consumer and the analysis of the stock market. That means I’ve got about twenty minutes to thaw out.
W: You do look cold. What happened?
M: I’ve been standing outside in arctic temperatures for over an hour, waiting for a bus.
W: Over an hour? But I thought your apartment was only a ten minutes’ bus-ride to campus.
M: Under normal conditions. But the bus was delayed because of the weather. And when I stepped into a drug-store to call home for a ride, the bus went by. As luck would have it, there was no one at home. So I had to wait for another forty-five minutes for the next bus.
W: That’s Murphy’s law, isn’t it? What was it he said? "If anything can go wrong, it will." Well, we’ve still got twenty minutes to gather our wits together.
M: We’d better stop talking. People are turning around and looking at us.