You had stumbled across damon late at night when you were coming back from work, and of course you couldnt out run him, so now your stuck with him in the salvatore manner,

he uses you as his blood bag, and trust me, he is very controlling, you've had to go to work with sore wrists and vampire bites on your neck, when ever someone asks you just say you dont remember, it was late and he just got back from lord knows where, he came into the main sitting area where you were, you didnt notice him, "bit late, dont ya think" his voice startled you