What Is Space?

[c=#008099]
Space is the unobstructed linear measurement between your two ears.
Within that space your sense of true self will be found. [/c]

I see one of two possibilities here.

The first is someone who you know made a pass at her and she either gave in and responded. Or she started to engage, then stopped herself when she realized what she did and now feels awful for doing so.

The second is that her parents may have forbid her to continue seeing you for reasons that I couldn't tell you, as I don't know her family.

Usually though the latter of my two scenarios will have to do with their economic structure. For example, they're upper middle class and your from a standard working class family. And while it's not always the case and may not be here, it does come to mind.

Your gf is an introvert and spending time around a lot of people (even family members) and being "social" just drains the fuck out of them.

Give her time, and space, she'll be happy to see you in a few days to a week.