I was doing so good and at an all time high

When I thought things couldn’t get worse I had someone walk out 5 minutes before closing. Told her the stuff we had to do but didn’t do it. She kept going outside to smoke and didn’t watch the register. I’m getting mad because she’s not helping me. Told the assistant manger what was going on she came up and tried to cheer everything up. The assistant told the other co worker to help bring stuff in because it was raining while I was doing something. She was tossing things on to the carts. The assistant said u might also want to roll ur windows up it’s starting to rain. The assistant said u guys where busy I said yea thought to my self “it was busy but u still could’ve helped “ after that she grabbed her keys and headphones walked out the door and drove off.
And on top of the my best friend a co worker moving away.