"22M/21F, 1-year relationship: Dealing with passive-aggressive behavior and unfair expectations

Just yesterday she was feeling sick. I told her to eat and take medicines she didn't listen to me and kept giving excuses she stayed like that for the whole day and in the evening she sent me a photo showing she's taking drugs then and told me I'm happy now right?" And I said Yes. I am. But you did not want to eat when I told you to eat. You said you'll pass" she exclamaimed" hmm" and I asked what is wrong and she said " nothing" and I said nothing ehh and she said yes then I said " Something. " Say that babe I'm sorry but I didn't really have appetite and I know you'll worry when I don't eat cus your afraid it might make the gastric to come again ill listen to you next time and try to eat something love. I'm really sorry' fácil" and instead she asked me why should she apologize for not having appetite and I told her to read well its not about her not having appetite. And she said Babe I'm sorry but I didn't really have appetite and I know you'll be worried whenever I don't eat because your afraid it might make the gastric to come again I'll listen to you next time and try to eat something. That was the exact thing I said and she was just being sarcatin and when I ignored this she got mad instead, someone who was supposed to apologize got mad at me instead and told me good night. And I noticed she was mad at me I decided to be the big man and apologized so everything will be OK instead she said it's too late for that and went to sleep.. this is dealing with me mentally. Please I need help on this situation