I went out with DC1 earlier, and came back later than DH expected. We hadn't had a conversation about times but I texted him to say the one extra thing we were going to do and then that we'd head home. He replied saying "cool" and that he'd recently got home. The bus takes forever so that took about 45 minutes, meaning we got back around 1 hour 20 minutes after the text.
I got home and he's grumpy and being short with me, eventually after I ask he admits he's frustrated as he says if he'd known I was going to be out so long to begin with he could have made more of his time with the other DC.
I appreciate this, and I think we probably should have checked we had similar expectations to begin with, but my AIBU is that he doesn't need to be off and grumpy with me about it. It's possible to wish something had been different without taking it out on someone. But maybe I'm being unrealistic or unfair. I'm not sure.