context

1. Background, environment, framework, setting, or situation surrounding anevent or occurrence. 
2. Words and sentences that occur before or after a word or sentence and imbue it with a particular meaning. 
3. Circumstances under which a document was created, including its function, purpose, use, time, the creator, and the recipient. 

The context for the situation did not quite match the level of seriousness that Jane was using, and being oblivious to this fact, she was quite suprised when her sister told her to tune it down.