"I never wanted anything more."
The sentence quoted in the title is from a beautiful (for me) song by Moby,
called 'Mistake'.
The context is not relevant as does not give any hint to the meaning.
I cannot decide between the followings:
a) 'more' has the meaning similar to 'no more things'
b) 'more' relates to the intensity of the desire (to want).
c) The sentence could have both of the previous meanings.
Thank you for your help.