Personally, I really like the theory someone else espoused that Rollo is really VV in disguise playing mind games with Lelouch. It would certainly explain the brother we never knew he had. (Unless Rollo is really just Nunnally's missing brother from the metal womb.) It also sort of explains the whole missing Nannally/episode 25 stale mate since potentially VV could still have Nannally then.

Since Suzaku is not actually evil, I don't think he would be in cahoots with VV, but he also has no reason to think VV is evil yet. Technically, we don't evil, all he did was foil Lulu's plan which doesn't necessarily make him evil, he just looks evil much like Schniezel.

And personally, I think Lelouch and Suzaku are having sex right now XD;