Argument with my girlfriend?

My girlfriend did not do good one semester because she stayed home multiple times between mental health and her period. She joked about going to sleep with me and I mentioned her school schedule. She got upset and asked to not lecture her and give her a chance to make up for not doing well on her first semester. I first said got it, she was upset so I elaborated and said I'm sorry it came off as a lecture and will give her a chance before saying anything. I then proceeded with saying I'll talk to her later and since it was nighttime I just waited till the next day. The next day comes up and I tried to ask how her period is and move on. She got upset I was moving on from the argument because I didn't text her after my apology. Was I wrong in this situation

Argument with my girlfriend?
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