Sanity check please

This morning my husband blew up at me because I didn’t secure a sitter so we could meet up with his friends tonight. Two weeks ago he mentioned his friends would be in town and that it would be cool to meet up with them one night. I said yes it would, then heard nothing about it until yesterday. I called our regular sitter who is busy. This morning he blew up and said I was crewing up plans to hang out. I said fine, it’s no problem, you go by yourself. He said the pint is that he wants me to be there. I scrambled and found someone else to watch the kids and texted him an hour ago to say so and ask what the plan is. Friends there is no plan. Him: “they have dinner with some people tonight but can meet up for drinks and a chat after.” Wtf?! There is no plan and you made me feel like shit about it this morning and I’m now paying 30% more than our typical rate to get someone last minute tonight and there isn’t even a fucking plan?! Then he says “they are staying in ::nearby town:: do you have any suggestions?” Are you fucking serious dude?! Now you want me to figure out what the fucking plan is for tonight?! And you can’t even tell me when their dinner might end? OB and I have work at 5am tomorrow. I want to scream. Am I overreacting here?