Girl, put on your big girl panties and move forward with your life, get your butt in a shelter.
Forget all that oath crap, it's a bunch of nonsense. I made an oath to my best friend in the third grade, we would be friends forever...we haven't seen each other for 55 years...so much for that.
Physical abuse is a deal breaker, for both of you. You two are toxic to each other and have no business being together.
Listen to those who have posted above, they know what they are talking about.