If you let me

I am incredibly awkward and negative.
I get attached to easily and I hold on for too long. 

I don't like opening up to people.
I hide behind my fake smiles.
I am probably one of the most difficult people you will ever meet.
But I can be sweet.
I am a great listener.
I will guard your secrets with my life.
I can be one of the best things to happen in your life.... if you let me