Like everyone has said here, addicts are manipulators and if you stand up for yourself, call them out and put some of your boundaries up, they snap. My XABF was the most verbally abusive individual and then could turn around the next day and be the sweetest person you ever met. It was really confusing back then to be in the middle of the mood swings. I often thought he had some personality disorder. It was hard to figure out if it were a disorder, addiction, a combination of both or if he was just a jerk.
I would do anything to keep your daughter safe. I finally had to end things when I realized I had to protect my daughter. Someone bringing vicodin and xanax into my house could have harmed my daughter. What if she found one on the ground, thought it was candy and ate it? Those thoughts were enough for me to leave him for good. No one is more important than my daughter, not him and not any other person.
I am sorry you are going through this. The emotional and verbal abuse just get worse. Trust me. It took me some time to get my self esteem back and I'm still working on it. You will get through it too.