Teacher Facetiming boyfriend with kids in her lap

(posting for a friend) To preface, this teacher is known for loudly talking on the phone while the children are around, this is just the most recent situation. Yesterday, I witnessed a teacher who was on FaceTime with children in her lap. for the sake of this post, we will call the child Ally. this teacher was loudly talking to her boyfriend and at some point says to the child in her lap "Ally, say hi to Daddy!" (this is not her child nor her boyfriend's) a few minutes before this happened, I had turned the music in the classroom down to better hear a child who is pretty quiet. after she said this to the child, she asked me why the music was off. I told her that it was not off, I had just turned it down to better hear this child and she said "oh okay, turn it back up please" I glanced to the door as I was helping this child fix his shoe and she then asked "what is a parent or a director coming in?" I told her no and she said "oh okay." and went back to talking to her boyfriend on the phone. I of course told my director about this because it is not right to be on your phone with the kids let alone showing them to the person you're on the phone with. my director made sure that I knew that she knew it was me and I said I know but if it comes down to a uncomfortable work environment versus the safety of my kids I will choose the safety of my kids every time. this coworker is very confrontational and later in the day came into my classroom and started cussing me out and yelling at me for "talking shit about me" I told her multiple times please leave, I am not doing this in front of the kids to which she asked me if I wanted to take it outside. I told her no I am doing my job please go do yours. I immediately called my director, who had left for the day and let her know what happened. the director said "okay go find the assistant director and she will talk to (coworker) and if need be and her home for the day. my co-teacher went to go find the director and told her to come to the room, but she never came. what should I do about this? we have professional development on Monday and I'm really thinking about taking a break to consider if I want to come back to this environment or not but I have to go to PD day or pay $200 to do the course separately.

ETA: this teacher also has a very strange relationship with this specific child. she openly favorites her and forces her to call her "mommy", saying things like "who's mommy Ally? who's mommy? is (teacher) mommy?"

UPDATE: today the director pulled my friend into the office during PD day. the teacher in question had gotten there first. the director said that my friend has been talking behind this teacher's back for months and been saying that my friend wants to fight her for months. this is absolutely not true. the director wants to "see if it will resolve itself". a call has been made to licensing and my friend is looking for a new job now.