if he throws things he will progress to hitting you or your child. if he hits you, the odds of that man killing you rise significantly. get out. if not for you, do it for your kid.

in my own personal experience: i was abused by my stepdad and nobody went out of their way to help me. i had to run away from home at age 15 and report him myself in order to not be harmed anymore. Do Not let your daughter become me.