How should I handle this?

Has your significant other gone through moody moods where they are just distant and kinda disconnected with everything?

My boyfriend recently got a new job and he says that it has not been going well. It's stressful and he is such a perfectionist that if things aren't exactly how he wants he just gets frustrated, cranky and shuts off from me and everything else... Is this normal? I try not to take it personally but it's hard because in my opinion he should be able to look past that, I'm here to support him 😕