I feel so bad and guilty , but i just dont like her :(?

First, it is not good to mix business and play. You are the boss and are expected to act professionally. Stop partying with the help and keep your private life away from the workplace. It really is important if your job means anything to you. About Ash, you didn't break her heart. She barely knows you. As far as feeling bad about it, you should. You are in charge, but you are letting things get out of hand. Back off from all of them and do your job. Good luck.