I'm currently reading Michael Moorcock's Behold The Man. It's a book with parallel stories of a young man's psychological difficulties with women, himself, and sex brought on by fears of inadequacy and also guilt handed to him in a rather vengeful fashion by his mother after the father split. The other tale is about the man's traveling to 28 AD to meet Jesus and about the various politics of Roman occupation, competing Judaic sects.
If you think about fiction for more than five minutes, you know from the first page how the story will end (assuming we are not being cheated by the Author, something in which Moorcock sometimes indulges). It is an extremely short novel at 144 pages built upon a Nebula award winning novella of the same name. I haven't read the novella yet, so I can't compare and contrast thematic elements nor state if the expansion works in favor of those elements. I am guessing that there are a few more specific elements to the psychological aspects of our character's "modern" existence.
There is a new edition to this book which was put out within the past few years which cleans up the text a bit. If you're interested in this work, then perhaps that may be the way to go.