Nikky's poem begins with a blunt admission: "I am empty." From there, the speaker tries to work out how she got that way. Her first instinct is to point at an ex-partner. Maybe that person led her into a "dark pit" on purpose, either to be the only one she can ever love, or to make sure nobody else could have her the way they did. Both ideas are bitter, and they show how much power she feels this person still holds over her.
Then the poem turns. The last lines admit that blaming someone else may be a way of avoiding something harder: that the problem was "ME." The gap before that word makes it land like a hesitation, as if the speaker has to push herself to say it.
The mood is raw and confused. It moves from hurt and suspicion to a quiet, painful honesty, and it ends without any comfort or answer.