Sierra, IMHO you should leave the title the same because readers already know the title, yet as you get more readers perhaps you may want to eliminate the older one? You should let the readers still reading the first one that you are making changes in the rewrite so that perhaps they will get interested as they read it, fall in love with the characters thereby wanting more of them. That,s just my thinking & I'm going to read the first version because I think it was a bit back when I read it, I'll leave comments. Most of all, write what you like to write with of course the audience you want to concentrate on & remember a love story is a love story & everyone loves them so don't worry if the lovers are vamps, werewolves or whatever. :-). I personally love vampire stories because you can do so many things with them in anytime you want them to be in.