Thanks for the quick replies! Sorry I didn't include more info.

vashti - My friend has never met, seen or spoken to her. So no he doesn't know her better than I do!

I don't really think she's playing me along but that maybe just because that's what I want to think. The first time she said she was busy - I can believe that. We had just started college again and she had missed the first week so she would've needed time to catch up.
The other time, again I can see why she didn't come. She would've had to walk from her work to mine in the pouring rain and the fact that she text me to say sorry also says something to me. I don't know though!