X≠Y≠Z: Z’s Lament

I can not explain why I’m now set adrift.
Was I such a pain? Was it part of a grift?
Whatever their reasons they’re not telling me:
I have no idea why I’m all at sea.

Why could they not love me and nurture my gift?
(My wide open mouth makes too big of a rift)
I always knew that they’d get rid of me
Because X is not Y and neither is Z.