The Collide Series (books 1,2,3) by Shelly Crane

Blurb:
Sherry has always known there was something out there. She's eighteen, works for a tabloid newspaper in Chicago and has a brother, Danny who is a lazy mooch. They live a pretty normal dull life with hippie parents and a normal existence Then the moon dissapears and people start to go missing only to reappear later, but different. Sherry has an abusive ex-boyfriend who shows up and claims