He has been infatuated with you since the moment he laid eyes on you so he won't let go that easy<3 

He can be a "little" possessive 

This lovely Vamp. has a name which is Zack.. No body knows how he became like this and nobody wants to.. but feel free to find out for yourself if you wanna<3 

Oh! and one more thing He is a "tad bit" powerful and he also "WaNtS tO sUcK yOuR bLoOd" 

He <3 the taste of blood

He has been infatuated with you since day one
so he won't let go that easy<3

He can be a little possessive 

He has been infatuated with you for a long time so he won't let you go so easily.
And it is best not to get on his 'bad side'<3 