Calufrax

Karen / Lucie seems to hit quite a few of Mills and Boon's buttons; depending on taste, you can have a fluffy office romance or a damaged war veteran.

166) What Should Have Been by Helen R. Myers
Her past was standing right in front of her…
She’d heard Lucie Miller was back in town. But nothing prepared single mother Karen Coltraine for her first heart-stopping glimpse of the woman who’d changed her world forever one passion—filled night… only to vanish from her life.
Lucie didn’t want a heroine’s welcome. She’d left home prepared to die for her country. Now a woman who seemed hauntingly familiar was tempting her to risk much more than her life. But she wasn’t the woman she once was—the woman Karen seemed to remember.
The question was…was this a good thing?

Oh, and I'll have to wash my mouth out for linking to Another Place on calufrax, but lost_spook's prompt bore fruit.