Beware! Ghosted me after both of us already agreeing with our deal.

Here are screenshots of our chat history as proof:
https://drive.google.com/drive/folders/1ZYXF8lO4ccECYH7pzjcSPfpkRP4Cmovl?usp=sharing
On the last picture, you can even see that he's online. lol

I would've actually just let this issue go without writing a feedback if he just told me that he couldn't go through with our deal, but since he decided to ignore my messages and waste my time waiting for his response, then I guess let me be the first to tarnish his 100% positive feedback record.