A blood bond and an engagement through a Rose

Zero is doing his normal duties around the school when he suddenly spots a white Rose bloomed in the middle of red roses. Zero picks it from the stem and examines the white rose. Accidentally pricking his finger on a thorn, a single drop of blood stains one of the petals. Suddenly Zero watches as the flower turns a really dark red, in fact it was blood red. Not wanting to leave the flower on the ground carelessly Zero thinks of someone that actually does like roses, Kaname Kuran. So Zero climbs in Kaname's window and leaves the rose on Kaname's bedside table and leaves.

When Kaname enters the room the smell of Zero still linger's in the room, questioning what the hunter was doing here the pureblood looks around the room and then spots the rose on the bedside table.

Zero returns to his dorm to see a black midnight rose on his bed. A picks the the rose up and smells it, Zero instantly smells Kaname's blood on the flower. Suddenly Zero is pulled into a embrace. Kaname explains to Zero that Zero is no longer the slave to Shizuka Hio but now the hunter belongs to him and also that Zero is now his Fiancé. Not liking the Idea of being the purebloods husband, Zero tries to talk some sense into Kaname which Kaname rejects.

So Kaname and Zero leave the academy for two months before making a return.
How is Zero going to survive with the night class trying to kill him and How is Zero going to tell Yuki who is head over heels in love with Kaname that Kaname is his husband? Will Yuki be happy or deathly angry?

(Don't own characters)