Damnation (Better, #2) by Carrie Leighton

There is no light without shadow. There is no love without pain.

Loving each other has never been easy for Thomas Collins and Vanessa Clark. Their romance is fueled by passionate nights and fierce jealousy, hot sparks and seemingly insurmountable misunderstandings. After nearly losing each other, their relationship finally appears to be growing in the right direction. For the first time, Thomas confides in Vanessa, sharing the traumas in his past that have turned him into a broken soul incapable of bonding with anyone.

But not even this rekindled closeness can overcome Thomas's deep, gripping distress. While Thomas spirals into self-destruction, Vanessa does her best to move on. She revisits her relationship with her old boyfriend, Logan, who has never accepted the end of their relationship and is ready to provide the support she deserves.

Thomas is devastated and angry, because he knows that Logan isn't the right guy for Vanessa. But Thomas can't seem to keep himself together, his pain and addictions tearing him apart. Can there be a happy ending for two hearts on a collision course?