Hello heart. My name is love.

Hello heart, my name is love.
Have we been introduced?
I'm the feeling you get when he passes you by,
And the shaking you feel when he catches your eye,
I'm the wanting to touch and the longing to feel
I'm the one who makes life seem so unreal,
I'm the voice in your head and the weight in your heart
The one longing for every new day to start
I'm the spark of life but as weakening as death
I can make you feel like you're on crystal meth
But much like the drug, I have repercussions
And I'm prone to abuse and addiction,
Pretty soon you will see
I'm not all I'm made out to be
The pain I cause can't be cured by prescription.