The Undead Next Door by Kerrelyn Sparks
Jean-Luc Echarpe needs to go into hiding, just long enough so that people will forget what he looks like...because when you're a vampire, the fact that you never age is cause for scrutiny. Exiled to a small town in Texas, life is almost bearable when he meets lovely Heather Westfield. Then an old enemy resurfaces, determined to destroy Jean-Luc and everyone he loves. Now Jean-Luc must find a way to protect Heather while keeping his true nature a secret - but time is running out.