I broke up with my boyfriend. I didn't pay attention to calling or texting him. I said I had a fever.

... it is said that what men hate most is the woman who deliberately makes people care about you. You said you had a fever and asked him to take you to the hospital, but did you really have a fever? Maybe you are a little headstrong. Don't just say goodbye. If you really like him, then change your personality and let him accept you again. He may have made some mistakes, but this little thing, if two people really like it, should be no problem.