I can't be with you, for I'm a vampire

Half of me wants your heart,
The other wants to tear you apart,the first wants to kiss you till the end,
I want to drink your blood instead
Without you i think I'm dieing
I'm sick of trying,
Your a desire to me,
Our love should never be.
A cruse that was put open me,
I will want you till your died can't you see.
Good-bye

*i know the title is lame but i don't have time.*