Went on a few dates with this girl. She is starting to flake. Responds to my texts after 1 day, latest response included this at the end:

Sorry it once again took me so long to get back to you... I'm a dick

How would you reccomend to respond? I am trying to set up a new date. "I know" or "totally" and let it hang for a while is what I was thinking. I don't know if that makes me look whitney. I want to chastise her but maintain a non needy frame.