Books with devastating endings

My biography has a devastating ending. He dies a virgin and never had friends.

>Now I will relinquish; now I will let loose. Now I will at last free the checked, the jerked- back desire to be spent, to be consumed. We will gallop together over desert hills where the swallow dips her wings in dark pools and the pillars stand entire. Into the wave that dashes upon the shore, into the wave that flings its white foam to the uttermost corners of the earth, I throw my violets, my offering to Percival.

...

He's coming to terms with the fact that all of his hopes, dreams, and what might-have-beens are all fantasies coming crashing down. He's in love with a woman he can never satisfy (cock blown off in the war), and she's telling him that she's leaving for good. He's completely hopeless, and truly one of the Lost Generation.