It's not okay to leave people with out saying goodbye.
Jane was at her best friend's birthday party, but her sister needed a ride home from school.
Jane wanted to go help her sister.
Jane tells her best friend why she has to leave early before leaving.
Jane leaves the party without telling her best friend what she's doing.
Jane's friend understands Jane's situation and is okay with her leaving.
Jane's best friend feels disrespected and feels like Jane doesn't like her that much.