it's possible she comes back part way through the season, was Googling looking for any info and found her Twitter, she is tweeting and retweeting about the 3rd season so if she has left for good there is no hard feelings
EDIT - I feel a bit stupid now, she is on the poster for the 3rd season, just forget anything I said everybody
Funny, I checked her Instagram and she announced season 3 in her bio. Plus, some articles suggested that she is returning.
While we're on the subject, I really would like to see where that storyline would pick up from.
I'm way more invested in seeing Sam figure out how to be a dad to Justine than I am in seeing the show continue teasing a Sam/Ruth relationship (which would be awful, because they're both different kinds of unhealthy).
I imagine Justine will run away again, and I could see her staying with the girls and trying to keep it a secret from Sam, until she figures out how she can get him to let her stay.
This show had so much unexpected depth, even to the secondary characters. I want to see more of Bash and how he handles his sexuality, and definitely want more of Cherry's husband, who was a minor highlight of the first two seasons.