Okay, so there's a girl I am friends with in school. We're casual friends, don't really talk outside of school much. Well she broke up with one of my good friends about 3-4 months ago and I've been waiting to ask her out because of that. I recently talked to her about going to a concert. She seemed pretty excited, like she wanted to go, but when I mentioned bringing some friends along she wasn't as into the idea. Possibly because one of those friends was her ex, who she isn't very fond of, but recently went to prom with. But she didn't give me a straight yes or no. she said she'd tell me after prom. So prom goes by and I talk to her about it and she says "I don't know, I really wanna go, but I don't. You know?". I over heard her saying what I thought was "If he wants to hang out why doesn't he just straight up ask me?" to a friend of hers. What's holding her back from going? Is it the fact other people are going? Is she trying to not sound like rude saying no? I don't know.. should I try asking her to a movie or dinner, or something more formal than a concert, something with just the two of us?