A conversation of depression between a smart girl and two men

In the hall of a luxrious hotel, one attractive girl who is a Psycology student is sitting with two men. One is her friend David, another is David's friend Paul. Paul is a rich and handsome Italian guy. David is introducing him to the girl. The conversation is going through:

David:"Paul has beening living in this hotel for a long time."

Paul:" Yes, it's just like my second home."

"Oh? What is your first home" the girl asks.

" In Italy."Pau answers.

"With your parents and your own family?"

"En." Paul almost whispers.

David:" Paul is in here by himself."

"Yes, always." Paul emphasizes.

"Lonely?"The girl asks again.

"En......not really. I do not feel lonely by my own already. I know how to enjoy myslef." Paul smiled with pride.

"Woo, how?" The girl feels surprised.

"Well, many ways, go to jym, see some mates..."

"And stay with some pretty girls." David adds.

"Yes, just like you, if I am lucky." Paul is looking at the girl.

The girl faces to paul,"Thanks. So, you are very happy."

"Yes, always."

"Always?" The girl is looking at him and asks" you never feel upset or depressed?"

"No, why you ask like this?"Paul looks surprised.
"Well, I have beening talking to some people recently, they are all sufferring from different level of depression."The girl answers.

" Really?I do not understand why people get depressed?"Paul looked more surprised.
"Me too, why?" David asks.

"Well, as I know, there are various reasons for people to get depressed. Except the genetic depression, basically, is because people do not feel satisfied with things or themselves, or they can not get the things they want."

"Oh, poor thing."Paul and David siad together.

"Yes, poor thing, so in your life, you never get upset or depressed?"the girl seriously asks.

" No, never, I donot allow myself to get upset." Paul seriously answers.

"Ok, I thnik I need to go now, I have more important thing to do." The girl wants to leave.

Paul looks anxious"Oh, please stay, we just met, I expect you could stay longer. Where do you want to go, I can take any place you want to go.Do you like Intilian food?"

"Oh, no, sir, David told me just to see you.I am feeling a bit depressed now.Bye." The girl then left.

Two men is still sitting there, not moving and say a word. But they all looked upset, especially Paul.