I know this sounds stupid but

Someone please tell me if I’m in the wrong I have been friends with this girl for a while but lately she seems very toxic Idk. She seems to always get mad at me. Yesterday she got mad at me because I changed my mind about going somewhere with her. I am pregnant and very sick all the time. But i hung out with her the day before. She started saying she’s done with my shit. Today I went to to eat breakfast and her ex boyfriend worked at the restaurant I went to and she is furious at me for going there i was with my mom and i didn’t even pick the place. These are just examples there are so many more If I go to long without texting her back she gets really mad and says I don’t care about her but I’m just really busy all the time. She is 27 and I’m 20...