Author's Notes: Spoilers for The Clone Wars up to 5x01.
Though he obviously notices Obi-Wan zealously scouring news holo-feeds in every spare moment, Anakin pointedly doesn't attempt to dissuade his old Master from his obsessive hunt for Maul, as if he understands. But this pressing desire for vengeance is unbecoming a Jedi, Obi-Wan knows. It's worrying that Anakin might somehow empathise.
Obi-Wan can't afford to focus on his unease, however; not even when he's almost straddling the Dark Side whenever he confronts that monster. His rage grants him power he needs, after all.
That Maul is still breathing when Qui-Gon...
No. He can't fail again. No matter what it takes.