How to respond if your BF doesn’t come home

Quickly here - it’s my day off, I had plans out of town (my brother had a competition) and it’s been on the calendar for 3 weeks.

My BF messaged and was like how’s it going - I said “it’s stressful and intense - but so great. Super busy haven’t even stopped to eat lol”

That was my text. He told me my answer was short and I didn’t have to be rude. I said I wasn’t being rude at all!

He didn’t answer after that

I was home by like 630pm (he’s usually home by 6pm) and it’s now midnight and no answer nothing from him. He came home - his dirty work clothes are here. But he’s both silent and just not here. I called and messaged. He read the message.

Thoughts here??