so a week and half ago, my fiance came home from work and told me that he was no longer happy and didn't want to be with me anymore. my daughter and I left and moved in with my parents. the next day I found out that he was dating a girl that he works with. I told him from the moment that I found out that I did not want her around my daughter because 1)I do not know her and 2) our daughter is still transitioning and its too soon to have her around your girlfriend.

so last night was supposed to be his night, I was going out with some friends for the first time in 5 years. so after we get downtown he text me and tells me that his girlfriend will be there with her 3 kids and they are staying the night. I flipped my shit. I asked him to please not do this. please tell her that she cant come over because I was not okay with it. he was so angry with me because he said he didnt see a problem with her being around. he called me on the phone yelling at me and called me a bitch and a cunt in front of our daughter. I could hear her in the background yelling at him to stop. (she will be 4 in a month by the way) I ended up having to have my parents go pick her up bevause I couldn't get to her. I told my friends to take me home as soon as possible.

I obviously know that one day he is going to move on and probably get married one day and I never said she would never be allowed to be around her but for the time being I am not okay with it.

am I being unreasonable in saying that I don't want his new girlfriend around our daughter right now?