My wife is very hot tempered and she like to hit me when she lose her temper. She will dig her fingernail into my skin and sometimes she will slam my head against the wall. I don't want to hit her back. I love her. I believe she loves me too. How can I calm her down. And stop her from abusing me like this.

well. sounds like she is having problem controlling her anger. u might want to find out more about anger management and bring her to see a Dr. it might help. Of course, don't let her abuse you like that. one fine day you might just had enough of her, then you'll pack your things and leave. Seek treatment fast. all the best:)