vampire boyfriend, that you didn't know that he was one

he never came out in the morning and only came out at night. and when he came at night he always gave you love bites, but in reality he wants to drink your blood but at the same time his scared to hurt you

one night he came out of his room and always gave you love bites but he can't take it anymore and suck his teeth in, when he realizes and stops

"l-love, I-I'm sorry" he started to panic when he saw blood flowing down your neck