define.

lone-li-ness:
adjective.

1. a feeling that will devour one whole in an instant.
2. a feeling that is extremely uncomfortable; like when the sheets are far too hot as you try and fail at sleep.
3. a feeling that no matter what circumstances i am in, i don't think i will ever escape it.

"and when i press the keys, it all gets reversed. the sound of loneliness makes me happier."

what you can't fight, you embrace.
and everything is temporary.