It's constant.
Tonight is a more mild example. He lives 5 minutes away.
He said he will be over in 20 minutes, will let me know when he leaves. It's now been 45 minutes and no text or update. I'm sure he will end up being over an hour.
AIBU to be pissed off by this? I'd love to know the amount of time I've spent waiting around for him. I wouldn't mind, if he could just send an update or courtesy text.