Forget Me by Amanda K. Mann

Two months had passed since the attack at the compound and Lex’s life was ripped from beneath her feet. She had reluctantly come to accept her new fate: that she would never see her soulmate again or ever be truly happy. Little did she know, Cage had not given up on her and she still had people fighting for her.
After spending a couple of months as a rogue shifter, Cage was willing to walk through hell if it meant getting his mate back. Life without her wasn’t life at all and it was beginning to drive him mad. As he barely holds together his sanity, he forms unlikely bonds and gets involved with those he never thought possible, just for the chance to be with Lex again.
While fate had brought these two together, other forces seemed determined to rip them apart. Can Lex and Cage find a way to overcome them, or will they be forced to live the rest of their life alone?