no, there is no hope any longer 4 the two of you, becuz u ghave entered a line that should not have been crossed. no matter what ever happens u should not hit a woman! & she should not lay her hands on you either. thats just it sometimes things work sometimes they dont! this relationnship has been unhealthy for a long time, and yeah maybe counseling should be in order but for yourself and seperatley, the fact that you smacked her makes me think of your inability to cope and what you will do to the next girl when things are not going your way. obviously you guys dont bring out the best in eachother and are not willing to compromise on things either. let this go and take some time and focus on you.

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It takes a minute to have a crush on someone, an hour to like someone, a day to love someone - but it takes a lifetime to forget someone"

People change and forget to tell each other.