I need advice

So...

My ex and I broke up and it was pretty ugly, at the time I was unemployed (still am unemployed) but actively doing job applications, which he knew this already. In the process of the break up he said " well since you're leaving and breaking up with me give me back my phone."

Without hesitation I threw that mutha$#@&& as hard as I could and stormed out.

In the mist of all this I swallowed my pride and emailed him asking if I missed any calls, i.e. a JOB or a Doctors appointment... ya know important 💩

He only let me know of the doctors app. nothing else.

Fast forward to today...

I moved back in with him a few weeks ago, we are not back together though.

He's selling my phone and I asked to play with it before he factory resets it...

I see a freaking voicemail from a job asking me to give them a call from freaking month ago that he didn't notify me about.

Am I wrong for being upset about this?

Cause I'm LIVID!