Women, what are the reasons you delay text replies?

As a man who is secure, I have never delayed replies to women I am dating who have texted me. Typically several hours is the most I will go without responding to someone. Trying to elicit a psychological response from someone you are considering to be a partner in life seems sociopathic to me. Besides "being busy", which is nonsense - everyone knows we are all glued to our phones half of the day, what are the honest reasons why you have delayed a reply to a man that you have gone on multiple dates with for at least 2 days?

[Update - the conclusion of the related story was low interest, other options and a liar. The silver lining is that there are other, sometimes great fish in the sea. Choose people who consistently choose you.]