Atone in Darkness by Alexis Morgan

She took this job because it will pay her school debt and offers a decent wage.  She never expected to find herself trying to keep a man alive after they torture him.  He heals himself, she helps him along.  But she also knows they don't plan on keeping either one of them alive.  How could they escape?

Pocket Star and Edelweiss let me read this book for review (thank you).  It has been published and you can purchase a copy now.

They can tell the guards are getting ready to clear out, so they dress up as guards and attempt to escape themselves.  The guards are after them.  His workmates are trying to rescue them.  Before he's saved, he's shot by a guard.  They haul him off for medical aid, she's not trusted.  When he calls for her, she's brought in to help him recover.

It's a good thing they have love to carry them through.  His family and friends will just have to adjust.