If I can join your conversation ^^, I rather think that he actually thought about the *past* and how happy he had felt back then without realizing it. He talks about "stained memories" and Rollo doesn't appear in the glass, while Nunally does (she is the main focus]. Suzaku is there, too, though, so perhaps there's a still a little hope of future reconciliation XD (however unlikely it seems...)
(no subject)