Aloof?

"Aloof you say?
I'm so sorry if I made you feel that way.

It's really not my intention,
Though the reaction is of my own invention.

You see, long ago I built a wall,
A defence mechanism as I recall.

So for me to grow close, is still very hard,
After losing that important trust card.”

from Lost in a Quatrain: Poetry Anthology by Adiela Akoo