Answer :
I believe it would be a soliloquy. A soliloquy is defined as a person speaking to themselves without any regard for someone that may hear it (or oblivious to them).
A soliloquy
This is the act of speaking one's thoughts aloud regardless of any listeners; it is especially done by characters in a play.
This is the act of speaking one's thoughts aloud regardless of any listeners; it is especially done by characters in a play.