Looking for a series of books about a love story and vampires? (Not Twilight)?

Looking for a series of books about a love story and vampires? (Not Twilight)?
Added (1). Probably around 5 years ago I started reading a series on my kindle that I loved but cannot remember the author or name of the series so I'll try and describe it for you. I remember there was a young girl in late teens that was helping take care of younger sibling because their mother worked as a nurse and was hardly home and she met a vampire and fell in love. I remember he was rich. Also I remember the vampires would go to nightclubs to feed on humans.
If you know please respond, thanks!

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