FEVERCHAIN by M.A. Knight (EPUB)

Bianca Panco lives in a lonely world, waitressing at her mom's diner. Everything sucks until Gwen Dyer returns, retired from her collegiate soccer stint. Gwen is super hot, and not just figuratively-she's feverish and suffering from a mysterious, mind-altering disease. 

Bianca and Gwen instantly crave each other, but when Bianca's curiosity causes her to clash with Gwen's gun-toting family and a feral biker gang, she must decide how much she can sacrifice for a love that might eat her alive.