Hi George,
She may have taken more than 24 hours to reply back to your text because she was trying to get back at you for having the tendency to take hours to reply to her messages.
Now that she has followed that up by taking three days to reply back to your text message and only saying “hahahah” when she did, it may be best to try sending her a more engaging text message that encourages conversation such as an open-ended question.
You may get a quicker and better response with these types of text messages.