I'd write you're right, but I'm just thinking about this...

Two people who always hated each other never would be friend because a mere causality. Saving someone who is in death danger is a matter of principle and not of friendship... By thinking in Harry and Draco as friends is the same of thinking Snape and Sirius became BFFs... it's girls' stuff!

Sorry if I had disappointed you...

kisses,
Gab