The Pain of Things (In Medias Res #3)
J.L. Campbell

Corinne's cycle of dating men who have no chance of touching her heart has kept her sane over the years. Roger's turnaround unsettles her, because just when she considers changing the way she lives, his secret life threatens to destroy everything they're building together.
When her past and future collide, Corinne has two choices. Run away from what could be a repeat of the devastation that has gone before, or stay and fight for what her heart says is right for her.