There can be several lessons/morals to be derived from the story:

1. Never trust a woman ( not my opinion though)

2.When in a sexual relationship think from ur head not balls. Should have given her one eye.....:))

3. Always be sure what u r looking for.
If his intention was to make her happy then he should have no worries becoz thats what he wanted in the very first place. (my opinion)

4. Dont ever loose hope as long as u have something to play with.
He can still look for a blind woman as he still has his d*ck.

I have been through an ordeal where one of my (male) friends did not support me openly. Now I use the phrase "I am his friend" rather than "He is my friend". Things are a lot easier now.