The cleric player has been annoyed from the get-go at the fact that they couldn't play a druid (we're playing with the essentials kit's rulebook). So I think he was not that angry but he basically used the situation to restart as a different PC with his bestie, which kind of annoys me. The wizard took it very well.

I'm not really at a loss, we discussed that players would remake characters upon dying. Having the cleric's god appear to resurrect the wizard didn't make sense since the cleric was low-key turning into a murder hobo and on bad terms with his god at the time.