The context of the following conversation is Jessie was waiting at the coffee shop for her friend. Her friend finally showed up late.:
Jesse says I was starting to worry you were not going to show up!.
The friend responds Yeah I am so sorry I'm late.  I got stuck in traffic..
Jesse responds Oh, I hate traffic.  You should've called and told me!.
The friend responds Yeah I wanted to, but I left my phone at home..
Jesse responds Oh, I understand..
The friend responds I am really sorry you had to wait..