Don't be flattered that he misses you. He should miss you. However, he's still the same person who broke your heart. Remember, the oly reason he can miss you is because he's choosing, every day, NOT TO BE WITH YOU. (so you shouldn't be missing him.
the saddest kind of sad is the Know this feeling too well :( . sad that tries not to be sad. you know, when sad tries to bite its lip and not cry and smile and go, "no, i'm happy for you"? that's when it's really sad.