I Have Been In An Abusive Relationship

I was supposed to leave days ago. I had it all planned. We work in the same place and I was going to tell him; give my the keys Im leaving. Secure my stay at a ex coworkers house and tell my bosses I'm taking the rest of the day for an emergency. But never got an answer back from coworker when I sought help, chickened out last minute and tried to hang on again.
I had decided to get out of it as soon as all the abuse subsided. After all the hard hits, choke holds, slaps and demeaning comments. But here I am praying for him to change for him to get help and stay with it. Or make it easier for me to leave. But I'm just here feeling numb. Picked myself back up again and kill him with kindness. I hope and pray for a miracle. All I want is peace of mind and his want for change.