does this make sense at all , plz be honest?

Am a 20 yr old girl and my gf is 42 ,i posted a question earlier explaining how my gf hit me after verbally insulting her mom and getting in a fight w/ her afterward, and i said that am willing to call it a one time incident if she promises me not to lay a hand on me again. However she talked to me today and didnt really apologize or promise nething,on the contrary she told me how my behavior embarrassed her and how i was being insensitive not caring bout her image in front of her old parents 60+, and just when i told her that she physically abused me .she told me that what goes up must come down ! and that i verbally abused her "defenseless" mom so i got what i was asking for :S. and that if i act like a brat i get treated like one, i told her how i cant tolerate physical abuse and she told me to "get over it , its not like i slapped your face or broke your nose". she is acting like am making a big deal of it and that i should be sorry for what i did , and so i honestly didn't feel like she understands just how much what she did was wrong she doesn't even consider it abuse she told me that she would never abuse me and that what happend was not abuse . my question is ; do u by any chance get her point n think shez right ? and also same old question how on earth am i to make her promise me not to do that again and understand that it is abuse .?
thnx . plz no kinky responses , this is serious.
for those who want to understand more about what happened before here is my old post:
http://able2know.org/topic/141991-1#post-3911938
thnx again.