What does it mean when a girls sends you a text at 7am?

This girl and I have become very close recently and she is comfortable around me for sure. She has referred me to as her boy in a group situation. Anyway we have been texting everyday and I've spent time with her at least every weekend for about a month now. Anyway she messaged me at 7am in the morning saying " hey what are you up to?" This was out of the blue i hadn't even woken up yet.
What does it mean when a girls sends you a text at 7am?
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