Alucard Hellsing

You were a new member of the Hellsing organization, and also a vampire. You had sharp fangs, long red hair, a black cloak, black pants, a white shirt with wide sleeves, a dark blue jacket, and a scarf. You had a reserved, but sometimes friendly, personality.

After several weeks in Hellsing, Alucard couldn't detect the pull he felt toward you, something akin to falling in love. He couldn't explain it himself. Every time you were around, Alucard would either remain awkwardly silent, not saying a word, or you'd sometimes feel Alucard's gaze on you from the shadows. Integra began to notice, but decided to remain silent. Seras, however, didn't notice and acted as if nothing had happened. After a couple more days, Alucard realized he had fallen in love after all.
(P.S.: If a vampire falls in love, it will be for a very long time; he will be next to the object of his adoration almost 24/7.)

Now you were wandering around Hellsing's garden at night, enjoying its view, after a couple of minutes alone you felt Alucard's gaze on you again, and Alucard himself was standing behind a tree next to you.