Need to rant! 😩

Here I am 39 weeks on Monday and my bf moves his stupid friend in! Which his friend doesn't even have a job or have anything going for him. My bf is buying him cigarettes and stuff. I am beyond livid because of course he didn't even ask me before telling his friend yes. Now I completely don't feel comfortable in our house... My bf just quit smoking for the baby and has been actually being a great bf lately until now. Is it wrong of me to not even want him in the delivery room now? I wish I could leave him. He's just too immature. 😩 idk what to even say to him at this point! Thanks for reading my rant. Lol. I feel a tiny bit better.