So a few weeks ago, our PO really scolded my team for not letting him in on our release planning meeting. His rant went on for about 30 minutes, just one long monologue about why he should be invited in the future.
Apparently he wanted to know details since there were some important fixes in the release, which I suppose is fair (though the rant is really not necessary).

Fastforward 2 weeks, we invite him again. He accepts, but never shows up. We decide to start the planning anyway, since we don't want the release branch blocked because someone didn't show up.
Immediately after the meeting, we write him with the new release plan. And he starts ranting again about "planning without him" -.- ..

1) Stop yelling at the team you're supposed to work with. Talk with the team about it - I'm sure they'll listen.

2) If you demand being in meetings, show up - or at least decline in advance.

3) You have no right to rant about "not being part of the planning" when you were literally invited for a planning meeting 2 weeks in advance. No meetings were overlapping, so there's literally no excuse..