Didn't remus lupin consider going to the dark side in harry potter?

Ok.
I read somewhere in the book that Remus Lupin considerd going to live with Voldermorts Werewolves since the Dark Side treated them better then normal society did.

I know I read it in one of the books...

Can anyone help me out, or find the page/book?

Need to prove it to someone!

Here's some info: http://en.wikipedia.org/wiki/Remus_Lupin

Take care !!

no in the sixth one he had to live with them to get info about voldemort for the order, he never said that he was