Why would a girl I used to text send my a random message at 4 am saying, "You probably aren't still awake are you"? And the next day me she was drunk?

She said she was just looking for someone to convince her not to tell her ex happy bday, but I don't know. There is a much longer history with this girl that is too long to type here. I can elaborate if you want elsewhere.
Why would a girl I used to text send my a random message at 4 am saying, "You probably aren't still awake are you"? And the next day me she was drunk?
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