Shadows (Lux 0.5) by Jennifer L. Armentrout
It's cute, but I still like Katy and Daemon waaaaay more.
I found it really sweet to see Bethany'a family, and how they reacted to Dawson.
My favourite moment was seeing pre-Katy Daemon. That was bittersweet to see, so antihuman and antiromance. When Daemon said to Dawson, 'I never want to be like you' and in love, I died. It played on my heartstrings just that little bit more.
It was worth reading just to see the ending, when Beth and Dawson "disappear". I won't say anymore for the sake of spoilers, but surely check it out if you're a Lux nerd like myself.