[Free At Last]

I've been trying to go out with this girl for a few weeks now. I really like her, and have reason to think that she likes me somewhat as well. I've been busy, she's been busy, and now I'm questioning if she is just too nice to say no to me. Here's whats happened so far:

1st phone call: she said yes, would go for dinner, but call back next week
2nd phone call: she was busy studying at library, asked to call later
3rd phone call: she didn't pick up
Voice message: she said 'sorry i've been hard to reach, its not that im not interested... call me'

Her phone got disconnected after that, so I emailed. She wrote back saying basically:

- she's sorry again
- she's been stressed over school and wouldn't be good company right now
- after december 12 she'll be free
- after december 19 she'll be on call for work, and stressed again

Am I being too sensitive here? I totally understand she's busy as a person can be.... I am too mostly. Should I just give it another week and ask again, or pack it in and look elsewhere?