mad then became disappointed

This morning I encountered an incident that initially mad then later became very disappointed in mankind. When the BART train got to South Hayward station, there was a girl that was trying to catch the train. She slipped on the floor landing on her back, but her arm was stuck at the train door because she was trying to get on. I was shocked for a second, but when I got focused again, I realized that no one went to help this girl. everyone just stared at her, and thinking that the door would just open on its own. I couldn't stand it anymore and got up to push the door open for her.

Granted that she couldn't get on the train, luckily she's okay. She stood up again, and was panting at the station. The train stalled for a like 10-15 seconds before moving again. And then some girl on the train made a comment, "it's because of these people, that's why it hold up the train schedule." And another girl tagged along with that comment, and said, "you're very right."

When I heard that, I was in fumes. In my head, I was like, "it's just because of someone like you that don't help out others, that's why we get hold up on the train!!" I was so mad because I looked around, no one got up, and all the men were all sitting down too! what the heck is wrong with this world??? I wonder what would have happened, if I didn't stand up and help her out. Would anyone else get up???

Later, this became a disappointment.