history: I was expecting some help from a coworker but he didn't keep his word. Before, I held him in high esteem. Not anymore. I was expecting some help from a coworker but he didn't keep his word. Before_comma_ I held him in high esteem. Not anymore. That is disappointing. I am sorry
current: He asked me to help him then he will help in return. I helped him but it was his turn...
next: Have you tried talking to them?