that is not just a clone who's brothers he fought alongside with for years, who were his friends, who ultimately tried to kill him. it's also not just a clone of the 501st, who was under anakin's command, who obi wan may have met personally at some point.
this is also the face of the man he loved. the face of the man with whom he hoped he'd grow old with.
now he sees this aged clone and for a moment he gets a glimpse of the future he had once dreamed of and had to banish from his mind forever.

















