Please don't flame me I only want to state this fact its probably not true but just relax its only an opinion

Please don't flame me I only want to state this fact its probably not true but just relax its only an opinion!

In the fourth book, after harry has returned from facing voldemort, he's in Dumbledore's office. As he is recalling the events of that night and he says that voldemort can touch him and not get hurt, a sparkle of triumph appears in Dumbledore's eyes. Now due to this but of info I think that dumbledore is working for voldemort but has not disclosed himself yet! Wait wait wait before you go off on me listen to my reasoning! If dumbledore wasn't working on the dark side…why would a glimmer of triumph appear in his eyes? Huh? Answer that! Please please please don't flame me I really don't deserve it it's just my retarded thoughts.

Disclaimer: everything except my retarded thoughts belong to J.K. Rowling thank you