Am I rude?

This will be long, but PLEASE, hear me out.

So, a week or two ago, I was at dinner with my two friends, who are dating. I asked them what they were doing that night, and they said they were going to see the new Star Wars. I said that it sounded like fun, and then they asked if I had any plans, to which I said "no." After dinner, I had NO CLUE whether or not I was invited to the movie, so I didn't go. The next day my friend questioned me on why I didn't come, saying that I was "totally invited."

A week or so later, the exact same situation happened, and I actually had to be THAT person, who asks whether or not they're invited. They whispered to one another behind the menu, and ultimately decided I could come. But the issue was, that the movie started two hours later after we finished dinner, and no one could decide if we should've kept hanging out or just gone home and met up again at the movie. I kept asking about it, and said "Do you guys want me to follow you home, and then we can hang out, or do you want to just meet up at the movie?" They said they didn't care, and that I should just do whatever I wanted. I told them that I just didn't want to bother them if they wanted to be alone, to which one of my friends responded with "You already do." He said he was joking, but I don't know if he was. So, I followed them to each other's houses so they could change clothes, and then they told me to go to one of their houses and wait in my car and play on my phone while they ran an errand. Then we played a game and went to the movie.

ANYWAY, long story short, was I being rude? Should I have just not asked? Or am I just overthinking everything?