I could sort of see it if her story is "partially true". Like she got drunk, hit him, he grabs her arms and says stop hitting me, then he got drunk, acted crazy, started walking around the house with a gun, she leaves for safety, he shoots some random thing in the house. She freaks out legitimately, calls the cops worried that he actually shot himself... it turns out he didn't shoot himself... he shot a TV with CNN on...

Maybe their relationship is better under "normal circumstances" when they're not right before a big election with all kind of media attention and who knows what other stuff stressing them out, probably not getting a lot of sleep.

To me she looks like a druggie. He's probably bitching at her to stop doing so much coke and she's calling him a drunk. They could probably benefit from a month or two of clean living.