Why is my girlfriend so confusing?

Very new relationship and she's confusing the hell out of me!

She says she likes what we're doing but.

She texts one moment asking if she can come over, and when I reply "Sure!" I don't hear from her for the rest of the night.

This has been happening for a few days now. She never initiates any kissing or anything but always snuggles up and waits for me to start. After we make out she's happy but then I don't see her for a while.

What's going on?

Why is my girlfriend so confusing?
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