Maybe you know "Vampire Academy". I love this book and I'm looking forward having the newest book "Spirit Bound".
In the last book "Blood Promise" Dimitri got a Strigoi and Rose tried to kill him, because she had promised him before. Finally she stabbed him with her stake and he fall into a river. But in the end, when Rose is back at the academy she got a letter saying : "Have you forgot all lessons? I'll come and teach you again.
This pic should show,that Dimitri is nearer than Rose espects.
PS: Dimirti is Russian and calls Rose Roza.