How about I ignore a old coworker via messenger despite the fact I have her stuff?
Why don't you want to respond to her?
I'm so freaking furious at her for being so selfish.
Sometimes people can be so frustrating but keeping her stuff is wrong. She could accuse you of stealing and it could get you in trouble.
It's her fault for leaving her stuff here.
I can understand that she left her stuff there, but sometimes things happen. It's bad to keep things that belong to someone else. You should let her come by and pick it up instead of keeping it.