Divorce

I need to get a divorce from my wife. I used to be in the military and I married her before I moved to Hawaii. She always says nice things to be but her actions are alot different from what she says. She constantly lies and she lives with some one else because she keeps spending money on drugs and alcohol. We have sex once and a while but that's the only thing that's good about our relationship she also had a domestic violence case against her in Hawaii for getting really drunk and attacking me and breaking my car windshield. I've told her everything but she tells everyone else and acts like she's nice to me.