A poison dart

There is a sorrow in my heart  
wish I could know what was holding us apart.
I feel so afraid to come close,
as I know you will push me out the doors.
You are a cure to my lonely heart but a poison dart.

You left my hand and held him tight,
When you knew that I am fragile and afraid of heights.
I wish I could know how to end this misery and fight.
I wish you were poison dart and killed me right.