This was picked in the same Noble spirit.
This could have been easily called the dead man. I didn't understand the meaning of the phrase "dead slow" till I read about Paul. A man with whose life seems to be changed after an accident and losing a leg. But it sounds more like a 60 year old man who is looking for a reason to live. Love and sex seem to be quite an appealing factors to him but a sense of shame after losing a limb overshadows every other desire.
Life is more complicated after a tragic accident and it is not easy to keep the spirits high specially with a leg less. Paul looked this less as a shrinkage of the world for him which was actually more of a mobility challenge. But then it would have sound like a motivational book.
And in this sorry state you start having those romantic notions. The melancholic life not only becomes amorous but even tries to find some knight like attitude to gloss over the much deeper thoughts and desires.
It was very much a younger sibling of "Disgrace" when it comes to the characters and their life choices. You can easily replace Paul with Lurie and everything will sound the same without a dog.
Maybe it was not the best shot.
Love