I am someone who can dismantle you as easily as I promised you the world and managed to mean both with all of their heart.

Someone so prone to accidents.
Charming you with all of the little mistakes I make in preparation to surprise you when the big ones break you.

"I promise" he said -
"I promise to never leave you" -
The second it gets too serious - he will grow distant.

"I promise" I said -
"I promise to never leave you" -
Then, I will explode about something you said
three weeks ago over burnt toast.

You open your arms,
and just when you expect me to run to you -  I run the other way.