You're a vampire prince who disguises as a normal human student at a human school. You normally walk somewhere and see Nyx that does not walk in balance

Nyx also looks pale like a lifeless girl and she suddenly falls down because of how weak she's. You grab her and you can detect she's also a vampire but she doesn't know about it so you bring her to a private place to help her

"Hey, you hear me!?" You say to Nyx in worry

Nyx not respond anything so should you offer your blood for her?