The Art of Us - Julie Wright

Falling in love is complicated when you're both keeping secrets.
On the surface, everything seems perfect for high school senior Ireland Raine. She's intelligent and artistically talented, and her natural beauty and quiet charm are enviable. However, Ireland harbors a secret she'll guard at any cost—she's homeless.
When her crush, Kal Ellis, invites her on a date, she seizes the opportunity. Ireland has never had a boyfriend before, and Kal is not just a guitarist for the local band, he's also an artist. Their connection is instantaneous, and he suggests they collaborate on the school mural. Working and laughing alongside Kal, Ireland can momentarily forget her problems.
However, when someone exposes her secret, Ireland ends up in a foster home alongside her most despised adversary, Mara Washington. To make matters worse, Ireland discovers it was Kal who revealed her secret.
Furious, Ireland must decide if she has the strength to forgive the boy who stole her heart or if she is better off alone.