So sorry you had to experience this w/this selfish woman OP.
She sounds like a piece or work to me.
While she theoretically owes you for your time, at this point I would simply count my losses & just be grateful that she didn't hire you on.
Trust me, if she had your job would be the job from HELL. No ifs, ands or buts.
Her word would carry absolutely no weight or you would be manipulated + conned all the time. She is not only a liar, but she also sounds all over the map.
Sure, you may have lost a few hours pay, but what you did gain was an important life lesson learned along w/dodging the ugliest bullet ever.
Good luck in your future job searches!