being dead inside is a paradox.
a contradiction. polar opposites.
you feel nothing at all, but at the same time you're feeling something.
there are no intense emotions yet, feeling so dead inside is an intense emotion in itself.
you're comforted by the fact that you won't feel any bad emotions but
at the same time, you're dissatisfied because you won't feel any good emotions either.
being dead inside is great when your lover leaves you, when your friend dies, when everything comes crumbling down at once ... because you won't feel it as much.
being dead inside is terrible when your lover tries to kiss you, when your friend invites you on a vacation, when everything starts coming together ... because you won't feel it as much either.