Eh, I'm torn on this. For the longest time, Suzaku was sure that only by him dying would he be able to atone for his past sins. Lelouch's method, though, forces Suzaku to atone for his sins by living on; thus recognizing the value of his life, even if it is no longer truly his. He must live on to be a syrabol of hope for the rest of the world. And, essentially, he must do it alone. Yes, he has Nunnally and a few others who know the truth, but he'll never really be 'Suzaku Kururugi' again. That part of him was buried. Now he lives on in atonement and he accepted that. To me, that's a sad ending for him.Well, after what happened with Euphie, it wouldn't surprise me if he never wanted to love again.Even C.C. was crying during that scene, so she didn't seem to know either.