It is not very ofter when something happens that has me feeling taken advantage of. It is not a good feeling. It does not matter whether this happens professionally or personally.
The hard part is the feeling of what do I need to do to prevent this from happening again? Is there something that I need to change?
Then I remember, I always do my best. What others do that have no reflection on who I am and what I do. Some people just are not going to ever be happy. There are people who are ugly, cheat, take from form others, etc, etc.
I can set up standards for my life, who I am and follow them.
This is best way I know to live is just choose happiness.