As someone pointed out somewhere, no matter how much Suzaku is raging at Lelouch right now, he still cares for Nunally. Capturing Lelouch as Zero without getting Nunally to a safe place first would be detrimental to her in every way. Suzaku rollerbladingrolling up to Ashford in Lancelot would very possibly put Nunally's life in danger, either from V.V. or from Britannia.

Therefore, I don't think that Suzaku's gonna touch Lelouch off the battlefield.

But Mr. Badass is still too emo-rageful to stay in school. I'm sure he'll come around sometime by the end, though. It'll be an episode replete with healed friendships and Lelouch and Suzaku smiling wistfully at each other and endless Euphie montages and shit.