A Crazy Kind of Love (Marconi Sisters #2)
Maureen Child

Mike tried running away from her problems when she was a kid. When her mother lay dying, Mike ran. When her world crumbled, Mike hid. And she's learned that the only way to win is to stand your ground and keep trying. She doesn't understand what Lucas is talking about half the time, but she knows exactly what he's feeling. And while criticizing his complete lack of architectural ability, and remaking the house he's trying to build, Mike finds herself slipping into Lucas Gallagher's life.
She wakes him up and he shakes her up: the two of them are complete opposites, and nothing can keep them apart. Until Lucas's brother Justin comes home to die.