yes, unfortunately she is

If she was interested, she would call. She's busy and you need to respect that. If she wants to see you or talk to you, she will call. Leave her alone. The more you call, the more you'll push her away. Never chase someone that goes 10 days without making an effort to contact you. You can't make someone like you or want to be with you. You're young and will meet a ton of girls that want to talk to you. Have patience.

Yes, or she is just way too busy... and obviously that wont work for you... find someone else

I know it's hard. Especially when you hang out and see signs of things you hope to come. I've been there more times than I can count. One of the things I've learned is, when someone doesn't answer, stop calling. It's the hardest thing to do because it feels like your mood is affected greatly by whether you get an answer or not. Believe me, girls (people in general) sense this and it ends up being the cause of the ignoring. It's stupid but it's human nature and most of it happens subconsciously. A lot of it though depends on the personality. Some people get overwhelmed by attention so easily. They tend to use "busy" reasons when it's more "overwhelmed" and they use it with other things, not just relationships. The biggest thing to realize, even with what I just said, is that it's not all on you. It's pretty much all on them. They "own" it. But the easiest way out of it is to make plans for yourself and with other people. Even email random people on myspace. It seems stupid at first, but after weeks and months of doing this, you'll find yourself thinking less and less of *her* and that tends to bring people back...weird huh? Don't dwell too much on it. Take what I say with a grain of salt. The only thing you should base actions on is your experience, I'm only telling you what I sense and what others have told me. Everyone has their own reasons, their own truth. Remember, the most important thing is to know you're good enough. Then it doesn't matter what she thinks. Sometimes you have to feel bad. Let that happen. When the time comes, you'll feel good. :)

dont sound like she wants to go out if shes always busy, ask another girl out