Hello and welcome to our little world Mina!
I'm going to write my thoughts as an older person (!) who has brought up three daughters-all older than you!
Please understand that I'm not preaching as I have less experience than many who will chat with you. I do however want you to consider my take on your situation.
I detect a conflict between your head and your heart.
The fact that you are writing here suggests very strongly to me that you need advice as you are lost in your life-despite what you may say about wanting to be in this relationship.
As purely a knee-jerk reaction I would suggest that you need to run-far and fast. I have no idea if this is a practicality. I live in the UK and know nothing about the support you can get from your family or authorities.
Why do I say this? Because in my view a man who takes a 16-year old to live in this situation is extremely dangerous. A man who loses his temper with you is a danger-and a man who drinks your blood is especially so.
You state that he would never hurt you physically or emotionally.
Go back and read your own words. It seems to me he has-and is still doing-both.
If you were at ease with this you would not need to read the opinions of others-that alone should give you pause for thought.
As Tojo has already said-we cannot tell you what to do. I do think that you should VERY VERY CAREFULLY examine your life. You are a precious soul and you have you right to a good life with respect and without fear.
May your God walk with you.
Uncle Ed.