Hydrogen man

I am modest
I have enough to live on
Plain water
The course of my body
It ensures hydrolysis
I burn the lightest element in me
I breathe life-giving oxygen
I can do without food
I don't need money
But I don't want to live alone
I therefore placed an ad:
Thirty-year-old man with no commitments
He is looking for a suitable woman
So far, only one has spoken
But she goes on alcohol
(Thank you for Google Translator)