I read thin book about 2 years ago, it was Mills & Boon/Silhoutte:

The heroine is badly injured in a car accident while leaving her husband after an argument, she has amnesia and the town looks after her when no one claims her. When her husband discovers her in the small town after a couple of years, she doesn’t recognise him, he takes her home hiding the fact that she was leaving him after an argument.

Does anyone recognise it?