I can see both sides of it. She’s def the asshole if she threw out the rest of the date/wasn’t grateful just because there was no movie. I could also get her being upset that you only want to do it if she emphasized how much she wants to. It doesn’t make you an asshole, you’re allowed to no want to go but it can hurt if someone only agrees to do something after you have to put emphasis into it. It’s not fun doing something knowing the other person never really wanted to do it and you had to beg.