Seal All Exits (Tangled Web #3) by Jade C. Jamison

Heather Morrow has been fighting demons all her life, but the past two years have likely been her darkest. So when her friend Katie invites her to a reunion of sorts, Heather jumps at the chance, because Katie, one of the most down-to-earth people Heather has ever called friend, is the only person she has ever felt like herself around, and Heather realizes that she needs an ally to help her out of the shadows.

Kiefer Steele, vocalist for Shock Treatment, has been battling some demons of his own. He’s been a nothing most of his life, but world-famous guitarist J.C. Gibson took him from his beach-combing, weed-smoking ways and helped him make something of himself…except life on the road has taken its toll. The only ray of hope in his life has been his continuing online friendship with Heather. The two met in person once, backstage at a concert, and their friendship has grown stronger.

They haven’t seen each other in three years, though, and both have changed immensely.

When they discover each other’s darkest secrets, will their friendship—and budding romance—survive, or are they destined to spend their lives apart…and alone?