I can’t handle living like this.

I’m 22 weeks today. After leaving my first trimester smells really stopped bothering me. The smell of meat still gets me from time to time but the thing I cant stand the most is cigarettes man. It’s the worst. My boyfriends dad smokes them. I can’t eat being near him. I can’t really even stand that close because I can’t handle the smell. (His dad lives with us and sleeps on our couch) I can’t just tell him it bothers me. His dad has been going through a lot mentally. We are trying to help him as much as we can and I know if I told him that I hate the smell of cigarettes it would send him into other episode stressing me and my boyfriend out. His dad has been causing a lot of issues tbh. With him being suicidal and all. We’ve had to completely change the way we live because of him. We can’t listen to our music without it triggering him. We can’t talk about a lot of things because he always gets upset about something we said or he thinks it’s about him. That we are out to get him. Plotting against him. I know it’s his mental disorders doing it to him but my life changed when he moved in. I’m so stressed because of him. I have to watch every little thing I do because it’ll send him into another melt down. I can’t handle this. There are so many things that I’m just not allowed to do because it’s going to trigger him and make it harder my on boyfriend and me. I’ve resorted to just staying in my room because god forbid I use my phone while my friend is in the same room. He’ll think I’m texting about him. Talking shit about him. I can’t handle the everyday me doing something the triggers him. I’m sorry this was a very unnecessary rant. Thank you if you got this far. I don’t have anyone else I can talk to about it because he will hear me or it’ll cause fighting