i helped my brother study for his final exam . he studied really diligiently with me every day . but in the end on the actual exam he managed to fail it ! oh , no that is n't good . i '' m sorry i know . i 'm just so annoyed at all the time we spent ... did he just freeze up on the test or was it different then the stuff you studied ? yeah he got way too nervous and i guess the situation was different than he was expecting .
The brother's failure in the final exam despite diligent preparation triggered the feeling of disappointment.