Holden's attitude towards sex

Holden's views on sex are very confusing. He is very interested in it and calls himself a "sex maniac" but also it seems he knows ver little about it and even admits he just doesn't understand it at all. He clearly wants some action because he says he is "horny" and I think he is a little desperate because even calls up a girl, in the middle of the night, hoping he may have a chance with her.