How would u react if your husband told your child to f off

I’m in shocked right now. We were all laying in bed. My baby will be 2 in a few months. She slammed her head backwards and head butted him in the face really hard. I was like omg are u okay? And he was just holding his face not saying anything then he yelled at her and was like go play with something else and literally was like fuck off and I was like why the fuck would u just say that?! and then he got pissed at me called me a bitch and said he will remember this when I lose patience and I’m like losing patience and freaking out on a baby for an accident are different things. I’m so mad I also have the flu and can’t believe he is treating us like this out of no where. He has never said this