If Barrie could have been half as explicit as his admirer D.H. Lawrence there would have been no need for Lawrence. His understanding of the psychology of sex is entirely modern- except that he pulls back at the bedroom door. Is Tommy a serial shagger or a serial flirt? It matters to our understanding of the character, but Barrie won't say. I sometimes regret the way sex has flooded the modern novel, but the incompleteness of Tommy and Grizel demonstrates why it was essential for the dam to be breached.
Otherwise, Tommy is a fantasist and a writer. He loves his books more than he is capable of loving any person and succeeds in creating an image of himself in the public mind that is diametrically opposed to the reality. I doubt if there has ever been a more thorough and withering account of the artistic temperament and the price it exacts from its owner and his muses.