feeling of love for this wretched girl. What he feels is pity more than anything else. She is being exploited byMaurice and by every man who uses her body for five bucks a throw, or fifteen till noon. She has become totally desensitized to sex. Her life is ruined although she is still very young. She is like many girls who get caught up in the so-called "oldest profession," which goes on all over the world and destroys countless young lives.

Holden shows how he feels about Sunny when he says:

I took her dress over to the closet and hung it up for her. It was funny. It made me feel sort of sad when I hung it up. I thought of her going in a store and buying it, and nobody knowing she was a prostitute and all. The salesman probably just thought she was a regular girl when she bought it. It made me feel sad as hell--I don't know why exactly.

Holden doesn't know "why exactly" he has a lot of the thoughts and feelings he has. He is a gentleman, a nice guy, a sensitive young man in an insensitive world. He is ashamed of not being able to perform a filthy, vulgar action with a complete stranger in a cheap transient hotel room, when he should feel justified in having such self-respect as well concern for a fellow human being, degraded as she is.

When Sunny and Maurice come back to try to coerce another five dollars out of Holden, the little prostitute shows that she has not been entirely oblivious of his sympathy and consideration. 

"Leave him alone, hey," Sunny said. "C'mon, hey. We got the dough he owes us. Let's go. C'mon, hey."

In chapter 13, Holden checks in at the Edmont Hotel and meets an elevator operator who offers to send him a prostitute for five dollars. Holden agrees and begins to contemplate sex, women, and his missed opportunities to lose his virginity in the hotel room as he waits for the prostitute. When the prostitute arrives, she is a young girl with a high voice who makes Holden feel extremely nervous. When Sunny immediately takes off her dress, Holden mentions that he feels "peculiar" and says,

Sexy was about the last thing I was feeling. I felt much more depressed than sexy (Salinger 51).

Instead of having sex with Sunny, Holden lights up a cigarette and has a conversation with her. Holden eventually tells Sunny that he does not feel in the mood to have sex because he has recently had an operation on his "clavichord." Holden then confesses to the reader that Sunny is "depressing," and he feels more sad than sexy. What Holden really needs is to have a conversation with a person who genuinely cares about him. Holden is extremely lonely and nervous, and he is stressed out at this point and has other things on his mind. Aside from being worried about losing his virginity to a prostitute, Holden chooses to not have sex with Sunny, because he is too depressed and upset with life. He does not feel "sexy" and admits that he only feels sad being around her.