Most people said the original poster (OP) was not an A-hole.
“NTA. I don’t know what your husband’s deal is, but he was acting like a real asshole. I wonder if he sabotaged the trip on purpose or if he’s just trying to do his little thing.” I don’t know if you weren’t interested enough to see it through to the end, but you were absolutely right not to let him ruin your trip and he’s now going to buy you an expensive plane ticket to join you. I hope he’s ready to apologize profusely when you get home.” ”
“IDK WTF agree with this idea [waiting for the ticket prices to drop]. In my experience, the closer the flight, the more expensive the ticket. To get the cheapest tickets, you should book as far as possible. Waiting until the last moment is just asking you to pay high premiums…”
“He never wanted to go and is blaming you for not canceling. He’s the worst. Have fun. Make the most of your trip!”