The Rescuer by Dee Henderson

Book 6 of The O'Malleys

Summary: 

He's running away...

Stephen O'Malley is a paramedic. He's been rescuing people all his life. But he's on the run now--from the burden of his profession, from the grief of losing his siter, from a God he doesn't want to trust. 

He paused to help a friend...

Meghan may be blind, but she's not crazy. Someone is walking through her house, going through her things, so she turns to the one man she trusts to help her. Stolen jewels are turning up in unexpected places, and Meghan is caught in the middle of a criminal conspiracy. Stephen is glad to help out a friend--only she's slipping under his guard and threatening to become more than just a friend. 

This time she may be the one to rescue him...

Stephen is being chased by the God she loves as Meghan is showing him what it means to love and be loved. But Stephen's about to find out just what sacrificiall love really is on a night he will never forget--a kidnapping, a tornado, and a desperate search to find her alive...

Opening Lines: 

Paramedic Stephen O'Malley drove north from Chicago the night of June 25, leaving behind life as he knew it. The wipers pushed rain off the windshield, but even on high they gave a clear view of the road for only a few seconds. Cars ahead were visible as red diffuse taillights that occasionally brightened as drivers touched their brakes.