As a person I tend to internalize things a lot, I quickly absorb emotions from others around me, and that is both a blessing and a curse. So, I can understand how it may have upset you to be in proximate circumstances to somebody who was a fountain of negativity either to you or beside you.
Maybe it's a Pisces thing for me.
Getting that stuff out of your system through crying is one reaction to getting rid of your response to it, far better than getting a bottle to wash it over.
Writing about it here is also another healthy response.