"I don't know. What do you want to do?"
You're always making the decisions; and, she's always tagging along to whatever it is, even when you can tell she's just not that into it. She means to be easygoing, but in the process, you're getting stressed because you want to choose things you'll both love to do. And unfortunately, when you look more closely at your friendship, you realize you have no idea what she really likes.